“A mind enclosed in language is in prison.”

“At the very best, a mind enclosed in language is in prison. It is limited to the number of relations which words can make simultaneously present to it; and remains in ignorance of thoughts which involve the combination of a greater number. These thoughts are outside language, they are unformulable, although they are perfectly rigorous and clear and although every one of the relations they involve is capable of precise expression in words. So the mind moves in a closed space of partial truth, which may be larger or smaller, without ever being able so much as to glance at what is outside.”

“One can never really give a proof of the reality of anything; reality is not something open to proof, it is something established. It is established just because proof is not enough. It is this characteristic of language, at once indispensable and inadequate, which shows the reality of the external world. Most people hardly ever realize this, because it is rare that the very same man thinks and puts his thought into action.”

“We must not wish for the disappearance of our troubles but for the grace to transform them.”

“Absolutely unmixed attention is prayer.”

“Even if our efforts of attention seem for years to be producing no result, one day a light that is in exact proportion to them will flood the soul.”

“All sins are attempts to fill voids.”