The Most Famous Statements in the History of Philosophy
"I think; therefore I am (Cogito ergo sum)."
"The unexamined life is not worth living."
—Socrates (according to Plato)
"God is dead."
"Nietzsche is dead."
"You can't step into the same river twice."
"Cratylus [an extreme disciple of Heraclitus], who finally did not think it right to say anything but only moved his finger, criticized Heraclitus [his teacher] for saying that it is impossible to step twice into the same river; for he thought one could not do it even once!"
—Aristotle (Metaphysics, Bk. IV, Ch. 5).
"Man [i.e., the individual] is the measure of all things."
"The tao that can be explained is not the real Tao."
"What we cannot speak about we must pass over in silence."
"Hell is other people."
"A freedom which wills itself freedom is in fact a being-which-is-not-what-it-is and which-is-what-it-is-not, and which chooses the ideal of being, being-what-it-is-not and not-being-what-it-is." [What?]
"To be is to be perceived (Esse est percipi)."
"The real is rational, and the rational is real."
"All things are made of water, and all things are full of gods."
"Man is by nature a political animal."
"Man is born free but is everywhere in chains."
"Concepts without percepts are empty; percepts without concepts are blind."
"Truth is subjectivity."
"The entire history of western philosophy is nothing but a series of footnotes to Plato."
—Alfred North Whitehead
"Men will never be free until the last king is strangled with the entrails of the last priest."
"Out of love for mankind, and out of despair at my embarrassing situation, seeing that I had accomplished nothing and was unable to make anything easier than it had already been made, and moved by a genuine interest in those who are dedicated to making everything easy, I conceived it as my task [the task of the philosopher] to create difficulties everywhere."