Upon the whole, necessity is something, that exists in the mind, not in objects; nor is it possible for us ever to form the most distant idea of it, considered as a quality in bodies.
— from A Treatise of Human Nature by David Hume

What does it offer in comparison with, as balanced over against, some other possibility?
— from Democracy and Education: An Introduction to the Philosophy of Education by John Dewey

This occurrence gave rise to the suspicion of his being engaged in a design to rebel against his father, and claim for himself the government of the East; and the suspicion increased, when, on his way to Alexandria, he wore a diadem at the consecration of the ox Apis at Memphis; and, though he did it only in compliance with an ancient religious usage of the country, yet there was some who put a bad construction upon it.
— from The Lives of the Twelve Caesars, Complete by Suetonius

But the conception of right as the negation of wrong finds its principal application, and no doubt its origin, in cases in which an attempted wrong by violence is warded off.
— from The World as Will and Idea (Vol. 1 of 3) by Arthur Schopenhauer

Aberrant groups Abyssinia, plants of Acclimatisation Adoxa Affinities of extinct species —of organic beings Agassiz on Amblyopsis —on groups of species suddenly appearing —on prophetic forms —on embryological succession —on the Glacial period —on embryological characters —on the latest tertiary forms —on parallelism of embryological development and geological succession —Alex., on pedicellariae Algae of New Zealand Alligators, males, fighting Alternate generations Amblyopsis, blind fish America, North, productions allied to those of Europe —boulders and glaciers of —South, no modern formations on west coast Ammonites, sudden extinction of Anagallis, sterility of Analogy of variations Andaman Islands inhabited by a toad Ancylus Animals, not domesticated from being variable —domestic; descended from several stocks —acclimatisation of Animals of Australia —with thicker fur in cold climates —blind, in caves —extinct, of Australia Anomma Antarctic islands, ancient flora of Antechinus Ants attending aphides —slave-making instinct —neuters, structure of Apes, not having acquired intellectual powers Aphides attended by ants Aphis, development of Apteryx Arab horses Aralo-Caspian Sea Archeopteryx Archiac, M. de, on the succession of species Artichoke, Jerusalem Ascension, plants of Asclepias, pollen of Asparagus Aspicarpa Asses, striped —improved by selection Ateuchus Aucapitaine, on land-shells Audubon, on habits of frigate-bird —on variation in birds' nests —on heron eating seeds Australia, animals of —dogs of —extinct animals of —European plants in —glaciers of Azara, on flies destroying cattle Azores, flora of Babington, Mr., on British plants Baer, Von, standard of Highness —comparison of bee and fish —embryonic similarity of the Vertebrata Baker, Sir S., on the giraffe Balancement of growth Baleen Barberry, flowers of Barrande, M., on Silurian colonies —on the succession of species —on parallelism of palaeozoic formations —on affinities of ancient species Barriers, importance of Bates, Mr., on mimetic butterflies Batrachians on islands Bats, how structure acquired —distribution of Bear, catching water-insects Beauty, how acquired Bee, sting of —queen, killing rivals —Australian, extermination of Bees, fertilizing flowers —hive, not sucking the red clover —hive, cell-making instinct —Ligurian —variation in habits Bees, parasitic —humble, cells of Beetles, wingless, in Madeira —with deficient tarsi Bentham, Mr., on British plants —on classification Berkeley, Mr., on seeds in salt-water Bermuda, birds of Birds acquiring fear —beauty of —annually cross the Atlantic —colour of, on continents —footsteps, and remains of, in secondary rocks —fossil, in caves of Brazil —of Madeira, Bermuda, and Galapagos —song of males —transporting seeds —waders —wingless Bizcacha, affinities of Bladder for swimming, in fish Blindness of cave animals Blyth, Mr., on distinctness of Indian cattle —on striped Hemionus —on crossed geese Borrow, Mr., on the Spanish pointer Bory St. Vincent, on Batrachians Bosquet, M., on fossil Chthamalus Boulders, erratic, on the Azores Branchiae —of crustaceans Braun, Prof., on the seeds of Fumariaceae Brent, Mr., on house-tumblers Britain, mammals of Broca, Prof., on Natural Selection Bronn, Prof., on duration of specific forms —various objections by Brown, Robert, on classification Brown-Sequard, on inherited mutilations Busk, Mr., on the Polyzoa Butterflies, mimetic Buzareingues, on sterility of varieties Cabbage, varieties of, crossed Calceolaria Canary-birds, sterility of hybrids Cape de Verde Islands, productions of —plants of, on mountains Cape of Good Hope, plants of Carpenter, Dr., on foraminifera Carthemus Catasetum Cats, with blue eyes, deaf —variation in habits of —curling tail when going to spring Cattle destroying fir-trees —destroyed by flies in Paraguay —breeds of, locally extinct —fertility of Indian and European breeds —Indian Cave, inhabitants of, blind Cecidomyia Celts, proving antiquity of man Centres of creation Cephalopodae, structures of eyes —development of Cercopithecus, tail of Ceroxylus laceratus Cervulus Cetacea, teeth and hair —development of the whalebone Cetaceans Ceylon, plants of Chalk formation Characters, divergence of —sexual, variable —adaptive or analogical Charlock Checks to increase —mutual Chelae of Crustaceans Chickens, instinctive tameness of Chironomus, its asexual reproduction Chthamalinae Chthamalus, cretacean species of Circumstances favourable to selection of domestic products —to natural selection Cirripedes capable of crossing —carapace aborted —their ovigerous frena —fossil —larvae of Claparede, Prof., on the hair-claspers of the Acaridae Clarke, Rev. W.B., on old glaciers in Australia Classification Clift, Mr., on the succession of types Climate, effects of, in checking increase of beings —adaptation of, to organisms Climbing plants —development of Clover visited by bees Cobites, intestine of Cockroach Collections, palaeontological, poor Colour, influenced by climate —in relation to attacks by flies Columba livia, parent of domestic pigeons Colymbetes Compensation of growth Compositae, flowers and seeds of —outer and inner florets of —male flowers of Conclusion, general Conditions, slight changes in, favourable to fertility Convergence of genera Coot Cope, Prof., on the acceleration or retardation of the period of reproduction Coral-islands, seeds drifted to —reefs, indicating movements of earth Corn-crake Correlated variation in domestic productions Coryanthes Creation, single centres of Crinum Croll, Mr., on subaerial denudation —on the age of our oldest formations —on alternate Glacial periods in the North and South Crosses, reciprocal Crossing of domestic animals, importance in altering breeds —advantages of —unfavourable to selection Cruger, Dr., on Coryanthes Crustacea of New Zealand Crustacean, blind air-breathers Crustaceans, their chelae Cryptocerus Ctenomys, blind Cuckoo, instinct of Cunningham, Mr., on the flight of the logger-headed duck Currants, grafts of Currents of sea, rate of Cuvier on conditions of existence —on fossil monkeys Cuvier, Fred., on instinct Cyclostoma, resisting salt water Dana, Prof., on blind cave-animals —on relations of crustaceans of Japan —on crustaceans of New Zealand Dawson, Dr., on eozoon De Candolle, Aug. Pyr., on struggle for existence —on umbelliferae —on general affinities De Candolle, Alph., on the variability of oaks —on low plants, widely dispersed —on widely-ranging plants being variable —on naturalisation —on winged seeds —on Alpine species suddenly becoming rare —on distribution of plants with large seeds —on vegetation of Australia —on fresh-water plants —on insular plants Degradation of rocks Denudation, rate of —of oldest rocks —of granite areas Development of ancient forms Devonian system Dianthus, fertility of crosses Dimorphism in plants Dirt on feet of birds Dispersal, means of —during Glacial period Distribution, geographical —means of Disuse, effect of, under nature Diversification of means for same general purpose Division, physiological, of labour Divergence of character Dog, resemblance of jaw to that of the Thylacinus Dogs, hairless, with imperfect teeth —descended from several wild stocks —domestic instincts of —inherited civilisation of —fertility of breeds together —of crosses —proportions of body in different breeds, when young Domestication, variation under Double flowers Downing, Mr., on fruit-trees in America Dragon-flies, intestines of Drift-timber Driver-ant Drones killed by other bees Duck, domestic, wings of, reduced —beak of —logger-headed Duckweed Dugong, affinities of Dung-beetles with deficient tarsi Dyticus Earl, Mr., W., on the Malay Archipelago Ears, drooping, in domestic animals —rudimentary Earth, seeds in roots of trees —charged with seeds Echinodermata, their pedicellariae Eciton Economy of organisation Edentata, teeth and hair —fossil species of Edwards, Milne, on physiological division of labour —on gradations of structure Edwards, on embryological characters Eggs, young birds escaping from Egypt, productions of, not modified Electric organs Elephant, rate of increase —of Glacial period Embryology Eozoon Canadense Epilipsy inherited Existence, struggle for —condition of Extinction, as bearing on natural selection —of domestic varieties Eye, structure of —correction for aberration Eyes, reduced, in moles Fabre, M., on hymenoptera fighting —on parasitic sphex —on Sitaris Falconer, Dr., on naturalisation of plants in India —on elephants and mastodons —and Cautley on mammals of sub-Himalayan beds Falkland Islands, wolf of Faults Faunas, marine Fear, instinctive, in birds Feet of birds, young molluscs adhering to Fertilisation variously effected Fertility of hybrids —from slight changes in conditions —of crossed varieties Fir-trees destroyed by cattle —pollen of Fish, flying —teleostean, sudden appearance of —eating seeds —fresh-water, distribution of Fishes, ganoid, now confined to fresh water —ganoid, living in fresh water —electric organs of —of southern hemisphere Flight, powers of, how acquired Flint-tools, proving antiquity of man Flower, Prof., on the larynx —on Halitherium —on the resemblance between the jaws of the dog and Thylacinus —on the homology of the feet of certain marsupials Flowers, structure of —in relation to crossing —of composite and umbelliferae —beauty of —double Flysch formation, destitute of organic remains Forbes, Mr. D., on glacial action in the Andes Forbes, E., on colours of shells —on abrupt range of shells in depth —on poorness of palaeontological collections —on continuous succession of genera —on continental extensions —on distribution during Glacial period —on parallelism in time and space Forests, changes in, in America Formation, Devonian —Cambrian —intermittent —thickness of, in Britain Formica —rufescens —sanguinea —flava, neuter of Forms, lowly organised, long enduring Frena, ovigerous, of cirripedes Fresh-water productions, dispersal of Fries on species in large genera being closely allied to other species Frigate-bird Frogs on islands Fruit-trees, gradual improvement of —in United States —varieties of, acclimatised in United States Fuci, crossed Fur, thicker in cold climates Furze Galapagos Archipelago, birds of —productions of Galaxias, its wide range Galeopithecus Game, increase of, checked by vermin Gartner on sterility of hybrids —on reciprocal crosses —on crossed maize and verbascum —on comparison of hybrids and mongrels Gaudry, Prof., on intermediate genera of fossil mammals in Attica Geese, fertility when crossed —upland Geikie, Mr., on subaerial denudation Genealogy, important in classification Generations, alternate Geoffroy St. Hilaire, on balancement —on homologous organs Geoffroy St. Hilaire, Isidore, on variability of repeated parts —on correlation, in monstrosities —on correlation —on variable parts being often monstrous Geographical distribution Geography, ancient Geology, future progress of —imperfection of the record Gervais, Prof., on Typotherium Giraffe, tail of —structure of Glacial period —affecting the North and South Glands, mammary Gmelin, on distribution Godwin-Austin, Mr., on the Malay Archipelago Goethe, on compensation of growth Gomphia Gooseberry, grafts of Gould, Dr. Aug. A., on land-shells Gould, Mr., on colours of birds —on instincts of cuckoo —on distribution of genera of birds Gourds, crossed Graba, on the Uria lacrymans Grafting, capacity of Granite, areas of denuded Grasses, varieties of Gray, Dr. Asa, on the variability of oaks —on man not causing variability —on sexes of the holly —on trees of the United States —on naturalised plants in the United States —on aestivation —on rarity of intermediate varieties —on Alpine plants Gray, Dr. J.E., on striped mule Grebe Grimm, on asexual reproduction Groups, aberrant Grouse, colours of —red, a doubtful species Growth, compensation of Gunther, Dr., on flat-fish —on prehensile tails —on the fishes of Panama —on the range of fresh-water fishes —on the limbs of Lepidosiren Haast, Dr., on glaciers of New Zealand Habit, effect of, under domestication —effect of, under nature —diversified, of same species Hackel, Prof., on classification and the lines of descent Hair and teeth, correlated Halitherium Harcourt, Mr. E.V., on the birds of Madeira Hartung, M., on boulders in the Azores Hazel-nuts Hearne, on habits of bears Heath, changes in vegetation Hector, Dr., on glaciers of New Zealand Heer, Oswald, on ancient cultivated plants —on plants of Madeira Helianthemum Helix pomatia, resisting salt water Helmholtz, M., on the imperfection of the human eye Helosciadium Hemionus, striped Hensen, Dr., on the eyes of Cephalopods Herbert, W., on struggle for existence —on sterility of hybrids Hermaphrodites crossing Heron eating seed Heron, Sir R., on peacocks Heusinger, on white animals poisoned by certain plants Hewitt, Mr., on sterility of first crosses Hildebrand, Prof., on the self-sterility of Corydalis Hilgendorf, on intermediate varieties Himalaya, glaciers of —plants of Hippeastrum Hippocampus Hofmeister, Prof., on the movements of plants Holly-trees, sexes of Hooker, Dr., on trees of New Zealand —on acclimatisation of Himalayan trees —on flowers of umbelliferae —on the position of ovules —on glaciers of Himalaya —on algae of New Zealand —on vegetation at the base of the Himalaya —on plants of Tierra del Fuego —on Australian plants —on relations of flora of America —on flora of the Antarctic lands —on the plants of the Galapagos —on glaciers of the Lebanon —on man not causing variability —on plants of mountains of Fernando Po Hooks on palms —on seeds, on islands Hopkins, Mr., on denudation Hornbill, remarkable instinct of Horns, rudimentary Horse, fossil in La Plata —proportions of, when young Horses destroyed by flies in Paraguay —striped Horticulturists, selection applied by Huber on cells of bees Huber, P., on reason blended with instinct —on habitual nature of instincts —on slave-making ants —on Melipona domestica Hudson, Mr., on the Ground-woodpecker of La Plata —on the Molothrus Humble-bees, cells of Hunter, J., on secondary sexual characters Hutton, Captain, on crossed geese Huxley, Prof., on structure of hermaphrodites —on the affinities of the Sirenia —on forms connecting birds and reptiles —on homologous organs —on the development of aphis Hybrids and mongrels compared Hybridism Hydra, structure of Hymenoptera, fighting Hymenopterous insect, diving Hyoseris Ibla Icebergs transporting seeds Increase, rate of Individuals, numbers favourable to selection —many, whether simultaneously created Inheritance, laws of —at corresponding ages Insects, colour of, fitted for their stations —sea-side, colours of —blind, in caves —luminous —their resemblance to certain objects —neuter Instinct, not varying simultaneously with structure Instincts, domestic Intercrossing, advantages of Islands, oceanic Isolation favourable to selection Japan, productions of Java, plants of Jones, Mr. J.M., on the birds of Bermuda Jordain, M., on the eye-spots of star fishes Jukes, Prof., on subaerial denudation Jussieu on classification Kentucky, caves of Kerguelen-land, flora of Kidney-bean, acclimatisation of Kidneys of birds Kirby, on tarsi deficient in beetles Knight, Andrew, on cause of variation Kolreuter, on intercrossing —on the barberry —on sterility of hybrids —on reciprocal crosses —on crossed varieties of nicotiana —on crossing male and hermaphrodite flowers Lamarck, on adaptive characters Lancelet, eyes of Landois, on the development of the wings of insects Land-shells, distribution of —of Madeira, naturalised —resisting salt water Languages, classification of Lankester, Mr. E. Ray, on longevity —on homologies Lapse, great, of time Larvae Laurel, nectar secreted by the leaves Laurentian formation Laws of variation Leech, varieties of Leguminosae, nectar secreted by glands Leibnitz, attack on Newton Lepidosiren, limbs in a nascent condition Lewes, Mr. G.H., on species not having changed in Egypt —on the Salamandra atra —on many forms of life having been at first evolved Life, struggle for Lingula, Silurian Linnaeus, aphorism of Lion, mane of —young of, striped Lobelia fulgens Lobelia, sterility of crosses Lockwood, Mr., on the ova of the Hippocampus Locusts transporting seeds Logan, Sir W., on Laurentian formation Lowe, Rev. R.T., on locusts visiting Madeira Lowness, of structure connected with variability —related to wide distribution Lubbock, Sir J., on the nerves of coccus —on secondary sexual characters —on a diving hymenopterous insect —on affinities —on metamorphoses Lucas, Dr. P., on inheritance —on resemblance of child to parent Lund and Clausen, on fossils of Brazil Lyell, Sir C., on the struggle for existence —on modern changes of the earth —on terrestrial animals not having been developed on islands —on a carboniferous land-shell —on strata beneath Silurian system —on the imperfection of the geological record —on the appearance of species —on Barrande's colonies —on tertiary formations of Europe and North America —on parallelism of tertiary formations —on transport of seeds by icebergs —on great alternations of climate —on the distribution of fresh-water shells —on land-shells of Madeira Lyell and Dawson, on fossilized trees in Nova Scotia Lythrum salicaria, trimorphic Macleay, on analogical characters Macrauchenia McDonnell, Dr., on electric organs Madeira, plants of —beetles of, wingless —fossil land-shells of —birds of Magpie tame in Norway Males, fighting Maize, crossed Malay Archipelago, compared with Europe —mammals of Malm, on flat-fish Malpighiaceae, small imperfect flowers of Mammae, their development —rudimentary Mammals, fossil, in secondary formation —insular Man, origin of Manatee, rudimentary nails of Marsupials, fossil species of Marsupials of Australia, structure of their feet Martens, M., experiment on seeds Martin, Mr. W.C., on striped mules Masters, Dr.
— from The Origin of Species by Means of Natural Selection Or, the Preservation of Favoured Races in the Struggle for Life, 6th Edition by Charles Darwin

Upon this, the King of the city, who lay ill, being afflicted with a severe malady, asked for a cup, for the purpose of trying him; and then pouring water into it, and pretending that he was mixing poison with the fellow’s antidote, ordered him to drink it off, in consideration of a stated reward.
— from The Fables of Phædrus Literally translated into English prose with notes by Phaedrus

Thus everything has combined to give a special bent to German speculation, which deprives it of its claim to universal authority.
— from The Common Law by Oliver Wendell Holmes

In physics, when this is attained, the memory disburthens itself of its cumbrous catalogues of particulars, and carries centuries of observation in a single formula.
— from Nature by Ralph Waldo Emerson

"Eve! Eve!" cried David, "if only I could be a brother to Lucien!
— from Lost Illusions by Honoré de Balzac

A trough hewn from a tree is placed under the box, and this trough is about twenty-four feet long and three-quarters of a foot wide and deep; very often three cross-boards are placed in it, dividing it off into compartments, each one of which is lower than the next.
— from De Re Metallica, Translated from the First Latin Edition of 1556 by Georg Agricola

Under cover of darkness, if once I could get out of their sight, I was satisfied they would never catch me.
— from The Fire People by Ray Cummings

a retrospective effect being thus added, as has been done in other important cases, to the unlawfulness of the course pursued.
— from Abridgment of the Debates of Congress, from 1789 to 1856, Vol. 4 (of 16) by United States. Congress

The difficulties they [the commentators] have created for themselves arose … from depriving it of its cosmogonic character and belittling it by reducing the great phenomena there described to a simple modification of the terrestrial atmosphere ….
— from The Source and Mode of Solar Energy Throughout the Universe by Isaac W. (Isaac Winter) Heysinger

To Indian eyes the pain actually in the world was magnified a hundred-fold by the dark imagination of its connection with the past and with the future.
— from History of Religion A Sketch of Primitive Religious Beliefs and Practices, and of the Origin and Character of the Great Systems by Allan Menzies

[110] That is to say, as the social facts, the social phenomena, disprove the "social contract" as an occurrence taking place by human design and intention, so the phenomena of animal life disprove the assumption of such an occurrence as its commencement by divine intervention, or its commencement at all.
— from Creation or Evolution? A Philosophical Inquiry by George Ticknor Curtis

We have the whole island between us; for Mr. Piozzi promises me a dip in our Irish Channel next week, and we go on Thursday next to a Bathing Place called Prestatyn, about 14 miles off.
— from The Intimate Letters of Hester Piozzi and Penelope Pennington, 1788-1821 by Penelope Pennington

He adds practical advice as to how these aims can be made dominant in our individual cases, when he says, 'Set your affections on things above.'
— from Expositions of Holy Scripture Second Corinthians, Galatians, and Philippians Chapters I to End. Colossians, Thessalonians, and First Timothy. by Alexander Maclaren

He had also lately been appointed Deputy-Coroner for the district, in order, in case of need, to relieve Dr Tamplin—old Tom Tamplin who lived at Aldersley, ten miles away.
— from Maid of the Mist by John Oxenham