We must, therefore, pursue the things that make for happiness, seeing that when happiness is present, we have everything; but when it is absent, we do everything to possess it.

Let no one be slow to seek wisdom when he is young nor weary in the search of it when he has grown old. For no age is too early or too late for the health of the soul.

A beneficent person is like a fountain watering the earth, and spreading fertility; it is, therefore, more delightful to give than to receive.

Those desires that do not bring pain if they are not satisfied are not necessary; and they are easily thrust aside whenever to satisfy them appears difficult or likely to cause injury.

Moreover, the universe as a whole is infinite, for whatever is limited has an outermost edge to limit it, and such an edge is defined by something beyond. Since the universe has no edge, it has no limit; and since it lacks a limit, it is infinite and unbounded. Moreover, the universe is infinite both in the number of its atoms and in the extent of its void.

Justice has no independent existence; it results from mutual contracts, and establishes itself wherever there is a mutual engagement to guard against doing or sustaining mutual injury.

The acquisition of riches has been for many men, not an end, but a change, of troubles.