No one ever teaches well who wants to teach, or governs well who wants to govern.
Nothing in the affairs of men is worthy of great anxiety.
Boys should abstain from all use of wine until their eighteenth year, for it is wrong to add fire to fire.
Then not only an old man, but also a drunkard, becomes a second time a child.
To do injustice is the greatest of all evils.
There is no such thing as a lovers' oath.