Brevity is the best recommendation of speech, whether in a senator or an orator.

He removes the greatest ornament of friendship who takes away from it respect.

Nature has lent us life at interest, like money, and has fixed no day for its payment.

Since an intelligence common to us all makes things known to us and formulates them in our minds, honorable actions are ascribed by us to virtue, and dishonorable actions to vice; and only a madman would conclude that these judgments are matters of opinion, and not fixed by nature.

Diseases of the soul are more dangerous and more numerous than those of the body.

Those wars are unjust which are undertaken without provocation. For only a war waged for revenge or defence can actually be just.

For there is but one essential justice which cements society, and one law which establishes this justice. This law is right reason, which is the true rule of all commandments and prohibitions. Whoever neglects this law, whether written or unwritten, is necessarily unjust and wicked.