...the sole thing of which any man can be deprived is the present; since this is all he owns, and nobody can lose what is not his.

A great estate is a great disadvantage to those who do not know how to use it, for nothing is more common than to see wealthy persons live scandalously and miserably; riches do them no service in order to virtue and happiness; therefore 'tis precept and principle, not an estate, that makes a man good for something.

Within ten days thou wilt seem a god to those to whom thou art now a beast and an ape, if thou wilt return to thy principles and the worship of reason.

No one loses any other life than the one he now lives, nor does one live any other life than that which he will lose.

From Apollonius I learned freedom of will and undeviating steadiness of purpose; and to look to nothing else, not even for a moment, except to reason; and to be always the same, in sharp pains, on the occasion of the loss of a child, and in long illness.

Which is recorded of Socrates, that he was able both to abstain from, and to enjoy, those things which many are too weak to abstain from, and cannot enjoy without excess. But to be strong enough both to bear the one and to be sober in the other is the mark of a man who has a perfect and invincible soul.

The happiness of your life depends upon the quality of your thoughts: therefore, guard accordingly, and take care that you entertain no notions unsuitable to virtue and reasonable nature.