Nature does nothing uselessly.
The energy of the mind is the essence of life.
The only stable state is the one in which all men are equal before the law.
The aim of the wise is not to secure pleasure, but to avoid pain.
Dignity does not consist in possessing honors, but in deserving them.
Those who educate children well are to be honoured more than parents, for parents only gave life, and teachers, the art of living well.
Happiness is the settling of the soul into its most appropriate spot.
Happiness depends upon ourselves.
For the things we have to learn before we can do them, we learn by doing them.