There is something in our minds like sunshine and the weather, which is not under our control. When I write, the best things come to me from I know not where.

Be attentive, feel nothing in vain, measure and compare: this is the whole law of philosophy.

A person reveals his character by nothing so clearly as the joke he resents.

Many things about our bodies would not seem to us so filthy and obscene if we did not have the idea of nobility in our heads.

We accumulate our opinions at an age when our understanding is at its weakest.

We can see nothing whatever of the soul unless it is visible in the expression of the countenance; one might call the faces at a large assembly of people a history of the human soul written in a kind of Chinese ideograms.

The feeling of health can only be gained by sickness.