You have the power to strip off many superfluities which trouble you and are wholly in your own judgement; and you will make a large room at once for yourself by embracing in your thought the whole Universe, grasping ever-continuing Time and pondering the rapid change in the parts of each object, how brief the interval from birth to dissolution, and the time before birth a yawning gulf even as the period after dissolution equally boundless.

Marcus Aurelius, Meditations, IX.32