To do injustice is more disgraceful than to suffer it.

I exhort you also to take part in the great combat, which is the combat of life, and greater than every other earthly conflict.

Knowledge is true opinion.

Those who practice philosophy in the right way are in training for dying and they fear death least of all men.

Music gives wings to the mind and flight to the imagination.

A man who is good for anything ought not to calculate the chance of living or dying; he ought only to consider whether in doing anything he is doing right or wrong - acting the part of a good man or of a bad.

I know nothing more worthy of a man's ambition than that his son be the best of men.