“Men seek retreats for themselves—in the country, by the sea, in the hills—and you yourself are particularly prone to this yearning. But all this is quite unphilosophic, when it is open to you, at any time you want, to retreat into yourself. No retreat offers someone more quiet and relaxation than that into his own mind, especially if he can dip into thoughts there which put him at immediate and complete ease: and by ease I simply mean a well-ordered life. So constantly give yourself this retreat, and renew yourself. The doctrines you will visit there should be few and fundamental, sufficient at one meeting to wash away all your pain and send you back free of resentment at what you must rejoin.”

Marcus Aurelius, Meditations (pag xxxv)