Virtue is that perfect good, which is the complement of a happy life; the only immortal thing that belongs to mortality.

Bear in mind that you commit a crime by injuring even a wicked brother.

Tranqility is a certain quality of mind, which no condition or fortune can either exalt or depress.

Our minds must relax: they will rise better and keener after rest. Just as you must not force fertile farmland, as uninterrupted productivity will soon exhaust it, so constant effort will sap our mental vigour, while a short period of rest and relaxation will restore our powers. Unremitting effort leads to a kind of mental dullness and lethargy.

They who have light in themselves will not revolve as satellites.

To preserve the life of citizens, is the greatest virtue in the father of his country.

Let us fight the battle-retreat from the things that attract us and rouse ourselves to meet the things that actually attack us.