The military superiority of Europe to Asia is not an eternal law of nature, as we are tempted to think, and our superiority in civilization is a mere delusion.

[Industrialism's soon diminishing] capacity to supply human needs could be prevented if men exercised any restraint or foresight in their present frenzied exploitation.

The very best proof that something can be done is that someone has already done it.

In our complex world, there cannot be fruitful initiative without government, but unfortunately there can be government without initiative.

The teacher, like the artist, the philosopher, and the man of letters, can only perform his work adequately if he feels himself to be an individual directed by an inner creative impulse, not dominated and fettered by an outside authority.

Literature is inexhaustible, with every book a homage to infinity

Morally, a philosopher who uses his professional competence for anything except a disinterested search for truth is guilty of a kind of treachery.