Nature has had regard in everything no less to the end than to the beginning and the continuance, just like a man who throws up a ball. What good is … - Marcus Aurelius

Wilt thou then, my soul, never be good and simple and one and naked, more manifest than the body which surrounds thee? Wilt thou never enjoy an affectionate and contented disposition? Wilt thou never be full and without a want of any kind, longing for nothing more, nor desiring anything, either animate of inanimate, for the enjoyment of pleasures? nor yet desiring time wherein thou shalt have longer enjoyment, or place, or pleasant climate, or society of men with whom thou mayst live in harmony? but wilt thou be satisfied with thy present condition, and pleased with all that is around thee, and wilt thou convince thyself that thou hast everything and that it comes from the gods, that everything is well for thee, and will be well whatever shall please them, and whatever they shall give for the conservation of the perfect living being, the good and just and beautiful, which generates and holds together all things, and contains and embraces all things which are dissolved for the production of other like things? Wilt thou never be such that thou shalt so dwell in community with gods and men as neither to find fault with them at all, nor to be condemned by them?

The straightforward and good person should be like a smelly goat—you know when they are in the room with you.

..If you are troubled by external circumstances, it is not the circumstances that trouble you, but your own perception of them - and they are in your power to change at any time.