"I had forgotten her; but it is noticeable, that circumstances, persons, even words and looks, that had slipped your memory, may, under certain conditions, certain aspects of your own or another's mind, revive."
— from Villette by Charlotte Brontë

In 1864 the Colorado militia under Colonel Chivington attacked a party of Cheyennes camped under the protection of the United States flag, and killed, mutilated, and scalped 170 men, women, and children, bringing the scalps into Denver, where they were paraded in a public hall.
— from Myths of the Cherokee Extract from the Nineteenth Annual Report of the Bureau of American Ethnology by James Mooney

That grand passion which is at once the foundation and the power of a sceptic’s existence, and is both more enlightened and more despotic than he is himself, drafts the whole of his intellect into its service; it makes him unscrupulous; it gives him courage to employ unholy means; under certain circumstances it does not begrudge him even convictions.
— from The Antichrist by Friedrich Wilhelm Nietzsche

The second suggestive circumstance is the fact that even habitual reflexes may under certain conditions, especially when a particularly weighty different impression comes at the same time, not {81} take place.
— from Criminal Psychology: A Manual for Judges, Practitioners, and Students by Hans Gross

With certain minds, under certain conditions, it becomes absolutely irresistible.
— from The Works of Edgar Allan Poe, The Raven Edition Table Of Contents And Index Of The Five Volumes by Edgar Allan Poe

And never a flake That the vapour can make With the moon-tints of purple and pearl, Can vie with the modest Eulalie’s most unregarded curl— Can compare with the bright-eyed Eulalie’s most humble and careless curl.
— from The Works of Edgar Allan Poe, The Raven Edition Table Of Contents And Index Of The Five Volumes by Edgar Allan Poe

As a matter of fact, we should only be despised, if we were not credited with possessing the power to kill a man under certain circumstances.
— from The Will to Power: An Attempted Transvaluation of All Values. Book III and IV by Friedrich Wilhelm Nietzsche

I have recommended the adoption of good, pure English as the most unexceptionable colloquial coin.
— from The American Gentleman's Guide to Politeness and Fashion or, Familiar Letters to his Nephews by Margaret C. (Margaret Cockburn) Conkling

A few days earlier, General Needham marched from Dublin, and took up his position at Arklow, at the head of a force variously stated at 1,500 to 2,000 men, composed of 120 cavalry under Sir Watkyn Wynne, two brigades of militia under Colonels Cope and Maxwell, and a brigade of English and Scotch fencibles under Colonel Skerrett.
— from A Popular History of Ireland : from the Earliest Period to the Emancipation of the Catholics — Complete by Thomas D'Arcy McGee

There are many traditional maxims about time which insist upon its brevity, upon the necessity of using it whilst it is there, upon the impossibility of recovering what is lost; but the practical effect of these maxims upon conduct can scarcely be said to answer to their undeniable importance.
— from The Intellectual Life by Philip Gilbert Hamerton

For this one reason especially they are not likely to be the most used camera carriers of the aerial photographer of the future.
— from Airplane Photography by Herbert Eugene Ives

It cleanses us from original sin (actual sin also if the recipient be guilty of any), makes us Christians, children of God, and heirs of heaven.
— from Reasonableness of Catholic Ceremonies and Practices by John J. (John James) Burke

For the purposes of this argument it will be assumed that the power of man, under certain conditions, to project phantasms is provisionally established.
— from The Law of Psychic Phenomena A working hypothesis for the systematic study of hypnotism, spiritism, mental therapeutics, etc. by Thomson Jay Hudson

Two Days after a severe Fit I was invited to a Friend's House in the City, where I believed I should see Ladies; and with my usual Complaisance crippled my self to wait upon them: A very sumptuous Table, agreeable Company, and kind Reception, were but
— from The Spectator, Volumes 1, 2 and 3 With Translations and Index for the Series by Steele, Richard, Sir

To understand the tone and manner with which this word, "madame" was pronounced, you must have been present at some stormy discussion between two Rose-Pompons, jealous of each other; then you would be able to judge how much provoking hostility may be compressed into the word "madame," under certain circumstances.
— from The Wandering Jew — Volume 10 by Eugène Sue

They are in themselves generally useless, like footprints; and yet almost any sign of man's passage might, under certain conditions, interest a man.
— from The Life of Reason: The Phases of Human Progress by George Santayana