Could we perfect human nature, we might also expect a perfect state of things.

He who has a task to perform must know how to take sides, or he is quite unworthy of it.

Doubt can only be removed by action.

Take life too seriously, and what is it worth? If the morning wake us to no new joys, if the evening bring us not the hope of new pleasure, is it worthwhile to dress and undress?

True love is love that stays constant for ever, whatever it's fortune; whether requited or scored, filled or sent empty away.

A state of affairs which leads to daily vexation is not the right state.

The history of knowledge is a great fugue in which the voices of the nations one after the other emerge.