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.

Tranquility is nothing else than the good ordering of the mind.

Hast thou reason? I have. Why then dost not thou use it? For if this does its own work, what else dost thou wish?

To live each day as though one's last, never flustered, never apathetic, never attitudinizing - here is the perfection of character.

Take care that you entertain no notions unsuitable to virtue and reasonable nature.

Be like the rocky headland on which the waves constantly break. It stands firm, and round it the seething waters are laid to rest.

How easy it is to repel and release every impression which is troublesome and immediately to be tranquil.