Book V · 24
Think of the universal substance, of which thou hast a very small portion; and of universal time, of which a short and indivisible interval has been assigned to thee; and of that which is fixed by destiny, and how small a part of it thou art.
Keep in memory the universal Substance, of which thou art a tiny part; and universal Time, of which a brief, nay an almost momentary span has been allotted thee; and Destiny, in which how fractional thy share?
Marcus Aurelius, Meditations V.24. Translated by George Long (1862). The Stoic Library.