The efficacy of religion lies precisely in what is not rational, philosophic, nor eternal; its efficacy lies in the unforeseen, the miraculous, the extraordinary. Thus religion attracts more devotion according as it demands more faith - that is to say, as it becomes more incredible to the profane mind.

Each man enters into God so much as God enters into him.

The test of every religious, political, or educational system, is the man which it forms. If a system injures the intelligence it is bad. If it injures the character it is vicious. If it injures the conscience it is criminal.

Doing easily what others find difficult is talent; doing what is impossible for talent is genius.

A microscopic phantom of the universe; this is all that we are able to be.

It is dangerous to abandon one's self to the luxury of grief; it deprives one of courage, and even of the wish for recovery.

In order to see Christianity, one must forget all the Christians.