“Envy is the ulcer of the soul.”

Remember, no human condition is ever permanent. Then you will not be overjoyed in good fortune, nor too sorrowful in misfortune.

To be is to do.

Give me beauty in the inward soul; may the outward and the inward man be at one.

By far the greatest and most admirable form of wisdom is that needed to plan and beautify cities and human communities.

My plainness of speech makes them hate me, and what is their hatred but a proof that I am speaking the truth.

To find yourself, think for yourself.

Be of good cheer about death, and know this of a truth, that no evil can happen to a good man, either in life or after death.

One should never do wrong in return, nor mistreat any man, no matter how one has been mistreated by him.

The really important thing is not to live, but to live well. And to live well meant, along with more enjoyable things in life, to live according to your principles.

I know you won’t believe me, but the highest form of Human Excellence is to question oneself and others.

Not life, but good life, is to be chiefly valued.

Your mind is your predicament. It wants to be free of change. Free of pain, free of the obligations of life and death. But change is law and no amount of pretending will alter that reality.

Your mind is your predicament. It wants to be free of change. Free of pain, free of the obligations of life and death. But change is law and no amount of pretending will alter that reality.

An unconsidered life is not one worth living.

We cannot live better than in seeking to become better.

Be slow to fall into friendship, but when you are in, continue firm and constant.