I hate the world and almost all the people in it. I hate the Labour Congress and the journalists who send men to be slaughtered, and the fathers who feel a smug pride when their sons are killed, and even the pacifists who keep saying human nature is essentially good, in spite of all the daily proofs to the contrary. I hate the planet and the human race—I am ashamed to belong to such a species.

What is matter? Never mind.

That Plato's Republic should have been admired, on its political side, by decent people, is perhaps the most astonishing example of literary snobbery in all history.

Mathematics may be defined as the subject in which we never know what we are talking about, nor whether what we are saying is true.

The search for something permanent is one of the deepest of the instincts leading men to philosophy.

There was a law in Connecticut - I believe it is still formally unrepealed - making it illegal for a man to kiss his wife on Sunday.

To teach how to live without certainty and yet without being paralysed by hesitation is perhaps the chief thing that philosophy, in our age, can do for those who study it.