Doubt grows with knowledge.

Every day I observe more and more the folly of judging of others by ourselves; and I have so much trouble with myself, and my own heart is in such constant agitation, that I am well content to let others pursue their own course, if they only allow me the same privilege.

If youth is a fault, it is one that one gets rid of soon enough.

A state of true and universal tolerance is best ensured by leaving alone the peculiarities of men and peoples.

The force of a language does not consist of rejecting what is foreign but of swallowing it.

He who would reproach an author for obscurity should look into his own mind to see whether it is quite clear there. In the dusk the plainest writing is illegible.

We can redeem anyone who strives unceasingly.