If the art of ship-building were in the wood, ships would exist by nature.

Liars when they speak the truth are not believed.

We must not feel a childish disgust at the investigations of the meaner animals. For there is something marvelous in all natural things.

A man is the origin of his action.

Happiness is something final and complete in itself, as being the aim and end of all practical activities whatever .... Happiness then we define as the active exercise of the mind in conformity with perfect goodness or virtue.

Great and frequent reverses can crush and mar our bliss both by the pain they cause and by the hindrance they offer to many activities. Yet nevertheless even in adversity nobility shines through, when a man endures repeated and severe misfortune with patience, not owing to insensibility but from generosity and greatness of soul.

Therefore, even the lover of myth is a philosopher; for myth is composed of wonder.