There is change in all things. You yourself are subject to continual change and some decay, and this is common to the entire universe.
Marcus AureliusMark how fleeting and paltry is the estate of man - yesterday in embryo, tomorrow a mummy or ashes. So for the hairsbreadth of time assigned to thee, live rationally, and part with life cheerfully, as drops the ripe olive, extolling the season that bore it and the tree that matured it.
Marcus AureliusDo not disturb yourself by picturing your life as a whole; do not assemble in your mind the many and varied troubles which have come to you in the past and will come again in the future, but ask yourself with regard to every present difficulty: 'What is there in this that is unbearable and beyond endurance?'
Marcus AureliusEverything that happens either happens in such a way as you are formed by nature to bear it, or as you are not formed by nature to bear it.
Marcus AureliusWe are born for cooperation, as are the feet, the hands, the eyelids, and the upper and lower jaws.
Marcus AureliusSince it is possible that thou mayest depart from life this very moment, regulate every act and thought accordingly. But to go away from among men, if there are gods, is not a thing to be afraid of, for the gods will not involve thee in evil; but if indeed they do not exist, or if they have no concern about human affairs, what is it to me to live in a universe devoid of gods or devoid of Providence? But Gods there are, undoubtedly, and they regard human affairs; and have put it wholly in our power, that we should not fall into what is truly evil.
Marcus Aurelius