The law would say that to be patient under suffering is best, and that we should not give way to impatience, as there is no knowing whether such things are good or evil; and nothing is gained by impatience; also, because no human C thing is of serious importance, and grief stands in the way of that which at the moment is most required.
— from The Republic of Plato by Plato

Till then, I never knew of her existence.
— from Lady Windermere's Fan by Oscar Wilde

But philosophers, who abstract from the effects of custom, and compare the ideas of objects, immediately perceive the falshood of these vulgar sentiments, and discover that there is no known connexion among objects.
— from A Treatise of Human Nature by David Hume

This is not knowing the truth.
— from On Liberty by John Stuart Mill

Though I never knew what they were (being in Welsh), further than that they were highly eulogistic of the lineage of Morgan ap-Kerrig.
— from Bleak House by Charles Dickens

On the 13th he was to have come down again, but feigning indisposition as an excuse (this is well-known in Japan under the name of yaku-biô , official sickness), he sent a member of the second council, Tachibana Idzumo no Kami, to inform the representatives that the Tycoon had hitherto never spoken to the Mikado about acknowledging the treaties, but that now he had made up his mind to do so.
— from A Diplomat in Japan The inner history of the critical years in the evolution of Japan when the ports were opened and the monarchy restored, recorded by a diplomatist who took an active part in the events of the time, with an account of his personal experiences during that period by Ernest Mason Satow

But however prolonged and exhausting the chase, the harpooneer is expected to pull his oar meanwhile to the uttermost; indeed, he is expected to set an example of superhuman activity to the rest, not only by incredible rowing, but by repeated loud and intrepid exclamations; and what it is to keep shouting at the top of one’s compass, while all the other muscles are strained and half started—what that is none know but those who have tried it.
— from Moby Dick; Or, The Whale by Herman Melville

How low in the scale of animal life animals can profit from their experiences to the extent that their future conduct is conditioned thereby is not known.
— from Being Well-Born: An Introduction to Eugenics by Michael F. (Michael Frederic) Guyer

What the padre really thought of the trip is not known, but there was no doubt about his having the attention and respect of his somewhat reckless flock on his return to harbour.
— from The Story of Our Submarines by John Graham Bower

“That I never knew her, but that my father was a gentle knight who died ere
— from The Gathering of Brother Hilarius by Michael Fairless

“This is not keeping good watch.”
— from To The West by George Manville Fenn

Here, he describes how the dominion is lost ("There is no king in thee," ver. 9), and what shall happen during the period of this loss.
— from Christology of the Old Testament: And a Commentary on the Messianic Predictions, Vol. 1 by Ernst Wilhelm Hengstenberg

“There is no knowing how the moonlight effects on Jamaica Pond may strike you this evening.
— from An American Politician: A Novel by F. Marion (Francis Marion) Crawford

Nothing could have been more trying to the nerves than that long march through the lonely forest, with the knowledge that at any moment some body of Ashantis who had lingered behind the rest might spring upon them, and that, if not killed at once, they were doomed to a lingering death by torture at Coomassie.”
— from George Alfred Henty: The Story of an Active Life by George Manville Fenn

My mother stood in the doorway as we approached the house; but when Fred told her the story of the young gentleman, how he looked and behaved,—I somehow felt unable to do it,—with the crowning incident of the great basketful of berries he had purchased at half a dollar a quart, and that without even asking the price, I think I never knew my dear mother to be so delighted at any event in the quiet history of our little family.
— from The Atlantic Monthly, Volume 16, No. 94, August, 1865 A Magazine of Literature, Art, and Politics by Various

My company fell back directly after we exchanged shots, so that I never knew what had become of you."
— from Lone Pine: The Story of a Lost Mine by R. B. (Richard Baxter) Townshend