For the poison of hatred seated near the heart doubles the burden for the one who suffers the disease; he is burdened with his own sorrow, and groans on seeing another's happiness.

Those who would learn must suffer. In our own despair, against our will, wisdom comes to us.

Death is easier than a wretched life; and better never to have born than to live and fare badly.

Let there be wealth without tears; enough for the wise man who will ask no further.

Memory is the mother of all wisdom.

Suffering brings experience.

Ares gives his verdict without witnesses.