“Probable impossibilities are to be preferred to improbable possibilities.”

In all things of nature there is something of the marvelous.

In all things of nature there is something of the marvelous.

We are what we repeatedly do. Excellence, then, is not an act, but a habit.

Character may almost be called the most effective means of persuasion.

Dignity does not consist in possessing honors, but in deserving them.

If things do not turn out as we wish, we should wish for them as they turn out.

Nature does nothing uselessly.

Wishing to be friends is quick work, but friendship is a slow ripening fruit.

Happiness depends upon ourselves.

Wise men speak when they have something to say, fools speak because they have to say something.

It is not always the same thing to be a good man and a good citizen.

All human actions have one or more of these seven causes: chance, nature, compulsions, habit, reason, passion, desire.

Philosophy can make people sick.

The ultimate value of life depends upon awareness and the power of contemplation rather than upon mere survival.

The aim of the wise is not to secure pleasure, but to avoid pain.

We make war that we may live in peace.