It is not death that a man should fear, but he should fear never beginning to live.

My city and state are Rome. But as a human being? The world. So for me, "good" can only mean what's good for both communities.

When you have trouble getting out of bed in the morning, remember that your defining characteristic-what defines a human being-is to work with others.

Am I doing anything? I do it with reference to the good of mankind. Does anything happen to me? I receive it and refer it to the gods, and the source of all things, from which all that happens is derived.

Do not act as if you had a thousand years to live.

For nowhere either with more quiet or more freedom from trouble does a man retire than into his own soul, particularly when he has within him such thoughts that by looking into them he is immediately in perfect tranquility; and I affirm that tranquility is nothing else than the good ordering of the mind.

If it's time for you to go, leave willingly - as you would to accomplish anything that can be done with grace and honor.