For what is the best choice for each individual is the highest it is possible for him to achieve.

By 'life,' we mean a thing that can nourish itself and grow and decay.

I count him braver who overcomes his desires than him who conquers his enemies; for the hardest victory is over self.

People generally despise where they flatter.

For we do not think that we know a thing until we are acquainted with its primary conditions or first principles, and have carried our analysis as far as its simplest elements.

Man, as an originator of action, is a union of desire and intellect.

The best friend is he that, when he wishes a person's good, wishes it for that person's own sake.