Everyone is a genius at least once a year. The real geniuses simply have their bright ideas closer together.

To make astute people believe one is what one is not is, in most cases, harder than actually to become what one wishes to appear.

I made the journey to knowledge like dogs who go for walks with their masters, a hundred times forward and backward over the same territory; and when I arrived I was tired.

Delicacy in woman is strength.

He swallowed a lot of wisdom, but all of it seems to have gone down the wrong way.

The thoughts written on the walls of madhouses by their inmates might be worth publicizing.

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