Attentiveness is the heart of prayer.

We are only geometricians of matter; the Greeks were, first of all, geometricians in the apprenticeship to virtue.

The lure of quantity is the most dangerous of all.

There are only two sorts of greatness: true greatness, which is of a spiritual order, and the old, old lie of world conquest. Conquest is an ersatz greatness.

Liberty, taking the word in its concrete sense, consists in the ability to choose.

Contradiction is the lever of transcendence.

Those who keep the masses of men in subjection by exercising force and cruelty deprive them at once of two vital foods, liberty and obedience; for it is no longer within the power of such masses to accord their inner consent to the authority to which they are subjected. Those who encourage a state of things in which the hope of gain is the principle motive take away from men their obedience, for consent which is its essence is not something which can be sold.