Associate with people who are likely to improve you.

No man was ever wise by chance.

Those things which make the infernal regions terrible, the darkness, the prison, the river of flaming fire, the judgment seat, are all a fable, with which the poets amuse themselves, and by them agitate us with vain terrors.

The Best sign of Wisdom is the consistency between the words and deeds.

It is medicine, not scenery, for which a sick man must go searching.

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.

Most powerful is he who has himself in his own power.