Though ambition may be a fault in itself, it is often the mother of virtues.

Give bread to a stranger, in the name of the universal brotherhood which binds together all men under the common father of nature.

While we are examining into everything we sometimes find truth where we least expected it.

The soul languishing in obscurity contracts a kind of rust, or abandons itself to the chimera of presumption; for it is natural for it to acquire something, even when separated from any one.

One thing, however, I must premise, that without the assistance of natural capacity, rules and precepts are of no efficacy.

A liar ought to have a good memory.

He who speaks evil only differs from his who does evil in that he lacks opportunity.