Marcus Aurelius
Meditations 3.7
Never value anything as profitable to thyself which shall compel thee to break thy promise, to lose thy self-respect, to hate any man, to suspect, to curse, to act the hypocrite, to desire anything which needs walls and curtains: for he who has preferred to everything else his own intelligence and daemon and the worship of its excellence, acts no tragic part, does not groan, will not need either solitude or much company; and, what is chief of all, he will live without either pursuing or flying from [death]; but whether for a longer or a shorter time he shall have the soul enclosed in the body, he cares not at all: for even if he must depart immediately, he will go as readily as if he were going to do anything else which can be done with decency and order; taking care of this only all through life, that his thoughts turn not away from anything which belongs to an intelligent animal and a member of a civil community.
Marcus Aurelius, Meditations 3.7, translated by George Long
Prize not anything as being to thine interest that shall ever force thee to break thy troth, to surrender thine honour, to hate, suspect, or curse anyone, to play the hypocrite, to lust after anything that needs walls and curtains. For he that has chosen before all else his own intelligence and good genius, and to be a devotee of its supreme worth, does not strike a tragic attitude or whine, nor will he ask for either a wilderness or a concourse of men; above all he will live neither chasing anything nor shunning it. And he recks not at all whether he is to have his soul imprisoned in his body for a longer or a shorter span of time, for even if he must take his departure at once, he will go as willingly as if he were to discharge any other function that can be discharged with decency and orderliness, making sure through life of this one thing, that his thoughts should not in any case assume a character out of keeping with a rational and civic creature.
Marcus Aurelius, Meditations 3.7, translated by C. R. Haines