'Tis the sharpness of our mind that gives the edge to our pains and pleasures.

A man must always study, but he must not always go to school: what a contemptible thing is an old abecedarian!

I would rather produce my passions than brood over them at my expense; they grow languid when they have vent and expression. It is better that their point should operate outwardly than be turned against us.

Whatever is enforced by command is more imputed to him who exacts than to him who performs.

The desire for riches is more sharpened by their use than by their need. Pleasing all: a mark that can never be aimed at or hit.

Socrates and then Archesilaus used to make their pupils speak first; they spoke afterwards. 'Obest plerumque iss discere volunt authoritas eorum qui docent.' [For those who want to learn, the obstacle can often be the authority of those who teach]

A learned man is not learned in all things; but a sufficient man is sufficient throughout, even to ignorance itself.