To accuse others for one's own misfortunes is a sign of want of education. To accuse oneself shows that one's education has begun. To accuse neither oneself nor others shows that one's education is complete.

Books are the training weights of the mind.

It is impossible to begin to learn that which one thinks one already knows.

There is only one thing for which God has sent me into the world, and that is to develop every kind of virtue or strength, and there is nothing in all the world that I cannot use for this purpose.

You may fetter my leg, but Zeus himself cannot get the better of my free will.

Survey and test a prospective action before undertaking it. Before you proceed, step back and look at the big picture, lest you act rashly on raw impulse.

What hurts this person is not the occurrence itself, for another person might not feel oppressed by this situation at all. What is hurting this person is the response he or she has uncritically adopted. It is not a demonstration of kindness or friendship to the people we care about to join them in indulging in wrongheaded, negative feelings.