Ancient Greek philosopher and polymath. His writings cover a broad range of subjects spanning the natural sciences, philosophy
Those who educate children well are more to be honored than they who produce them; for these only gave them life, those the art of living well.
Suffering becomes beautiful when anyone bears great calamities with cheerfulness, not through insensibility but through greatness of mind.
Bashfulness is an ornament to youth, but a reproach to old age.
Different men seek after happiness in different ways and by different means, and so make for themselves different modes of life and forms of government.
Youth is easily deceived because it is quick to hope.
Hope is a waking dream.
To attain any assured knowledge about the soul is one of the most difficult things in the world.
He who is unable to live in society, or who has no need because he is sufficient for himself, must be either a beast or a god.
It is just that we should be grateful, not only to those with whose views we may agree, but also to those who have expressed more superficial views; for these also contributed something, by developing before us the powers of thought.
For though we love both the truth and our friends, piety requires us to honor the truth first.