The ripeness of adolescence is prodigal in pleasures, skittish, and in need of a bridle.

It is circumstance and proper measure that give an action its character, and make it either good or bad.

The usual disease of princes, grasping covetousness, had made them suspicious and quarrelsome neighbors.

Had I a careful and pleasant companion that should show me my angry face in a glass, I should not at all take it ill; to behold man's self so unnaturally disguised and dishonored will conduce not a little to the impeachment of anger.

Philosophy finds talkativeness a disease very difficult and hard to cure. For its remedy, conversation, requires hearers: but talkative people hear nobody, for they are ever prating. And the first evil this inability to keep silence produces is an inability to listen.

The worship most acceptable to God comes from a thankful and cheerful heart.

... being perpetually charmed by his familiar siren, that is, by his geometry, he neglected to eat and drink and took no care of his person; that he was often carried by force to the baths, and when there he would trace geometrical figures in the ashes of the fire, and with his finger draws lines upon his body when it was anointed with oil, being in a state of great ecstasy and divinely possessed by his science.