MARCUS AURELIUS. MEDITATIONS. Book iii. §7.
NEVER regard something as doing you good if it makes you betray a trust, or lose your sense of shame, or makes you show hatred, suspicion, ill-will, or hypocrisy, or a desire for things best done behind closed doors. If you can privilege your own mind, your guiding spirit and your reverence for its powers, that you keep you clear of dramatics, of wailing and gnashing of teeth. You won't need solitude - or a cast of thousands either. Above all, you'll be free of fear and desire. And long your body will contain the soul that inhabits it will cause you not a moment's worry. If it's time for you to go, leave willingly - as you would to accomplish anything that can be done with grace and honor. And concentrate on this, you whole life long: for your mind to be in the right state - the state a rational, civic mind should be in.