Source: Potentialities: Collected Essays in Philosophy
Quotes about possibility
page 3

Source: Education and the Social Order

“Of course it's possible to love a human being if you don't know them too well.”

“Change is never easy, but always possible.”
Source: Leisure: The Basis Of Culture

“A thought, even a possibility, can shatter and transform us.”

Variant: What is the nature of the search? you ask. The search is what anyone would undertake if he were not sunk in the everydayness of his own life. To become aware of the search is to be onto something. Not to be onto something is to be in despair.
Source: The Moviegoer (1961)
Context: To become aware of the possibility of the search is to be onto something. Not to be onto something is to be in despair. The movies are onto the search, but they screw it up. The search always ends in despair. They like to show a fellow coming to himself in a strange place-but what does he do? He takes up with the local librarian, sets about proving to the local children what a nice fellow he is, and settles down with a vengeance. In two weeks time he is so sunk in everydayness that he might just as well be dead.
Source: Abba's Child: The Cry of the Heart for Intimate Belonging

“Everything must be made as simple as possible. But not simpler.”
Variant: Everything should be made as simple as possible, but no simpler.

“A tautology's truth is certain, a proposition's possible, a contradiction's impossible.”
Certain, possible, impossible: here we have the first indication of the scale that we need in the theory of probability.
4.464
Original German: Die Wahrheit der Tautologie ist gewiss, des Satzes möglich, der Kontradiktion unmöglich
Source: 1920s, Tractatus Logico-Philosophicus (1922)

“After all, we make ourselves according to the ideas we have of our possibilities.”
Source: A Bend in the River

Source: Mind, Life, and Universe: Conversations with Great Scientists of Our Time

Source: The Hundred Verses of Advice: Tibetan Buddhist Teachings on What Matters Most
Source: The Gospel of Matthew: Vol. 2, Chapters 11-28

An Interview by Sheena McDonald (1995)

“I never put off till tomorrow what I can possibly do - the day after.”

Source: How to Stop Worrying and Start Living

2008, Election victory speech (November 2008)

Address at the Conference on Cosmic Design, American Association for the Advancement of Science, Washington, D.C. (April 1999)

“Memory is the diary that chronicles things that never happened or couldn't possibly have happened.”

Interview for KFRC RKO Radio (8 December 1980)

“Anything that feels good couldn't possibly be bad.”

Source: Ascending Peculiarity: Edward Gorey on Edward Gorey

“Virginia Woolf helps. Her novels make mine possible.”
Source: The Unabridged Journals of Sylvia Plath

Source: Autobiography of Mark Twain, Vol. 2 (2013), p. 115

“Will looked horrified. "What kind of monster could possibly hate chocolate?”
Source: Clockwork Angel

“It was the possibility of darkness that made the day seem so bright.”
Source: Wolves of the Calla

“When a woman tells the truth she is creating the possibility for more truth around her.”

Recollection by Gilbert J. Greene, quoted in The Speaking Oak (1902) by Ferdinand C. Iglehart and Latest Light on Abraham Lincoln (1917) by Ervin S. Chapman
Posthumous attributions

“Love can make you do things that you never thought possible.”

Pudd'nhead Wilson's New Calendar, Ch. XV
Misquoted as "Why shouldn’t truth be stranger than fiction? Fiction, after all, has to make sense." by Laurence J. Peter in "Peter’s Quotations: Ideas for Our Time", among many others.
Following the Equator (1897)
Source: Following the Equator: A Journey Around the World

“Once you choose hope, anything's possible.”

“An impossibility is just a possibility you don’t understand yet”
Source: A Boy Called Christmas

“I have no use for people who have learned the limits of the possible.”

“One should die proudly when it is no longer possible to live proudly.”

“Other people are quite dreadful. The only possible society is oneself.”
Lord Goring, Act III.
Variant: The only possible society is oneself.
Source: An Ideal Husband (1895)

“Our aspirations are our possibilities.”

“Without great solitude, no serious work is possible.”