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 23. Think often on the swiftness with which the things that exist and that are coming into existence are swept past us and carried out of sight. For all substance is as a river in ceaseless flow, its activities ever changing and its causes subject to countless variations, and scarcely anything stable; and ever beside us is this infinity of the past and yawning abyss of the future, wherein all things are disappearing. Is he not senseless who in such an environment puffs himself up, or is distracted, or frets as over a trouble lasting and far-reaching?

24. 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?

25. Another does me some wrong? He shall see to it. His disposition is his own, his activities are his own. What the universal Nature wills me to have now, that I now have, and what my nature wills me now to do, that I do.

26. Let the ruling and master Reason of thy soul be proof against any motions in the flesh smooth or rough. Let it not mingle itself with them, but isolate and restrict those tendencies to their true spheres. But when in virtue of that other sympathetic connection these tendencies grow up into the mind as is to be expected in a single organism, then must thou not go about to resist the sensation, natural as it is, but see that thy ruling Reason adds no opinion of its own as to whether such is good or bad. 121