We never know, believe me, when we have succeeded best.

Faith which does not doubt is dead faith.

What we believe to be the motives of our conduct are usually but the pretexts for it.

The only reactionaries are those who find themselves at home in the present.

We men do nothing but lie and make ourselves important. Speech was invented for the purpose of magnifying all of our sensations and impressions — perhaps so that we could believe in them.

Anyone who in discussion relies upon authority uses, not his understanding, but rather his memory.

Our life is a hope which is continually converting itself into memory and memory in its turn begets hope.