Meditations 7.8

Let not future things disturb thee, for thou wilt come to them, if it shall be necessary, having with thee the same reason which now thou usest for present things.

Marcus Aurelius, Meditations 7.8, translated by George Long

Be not disquieted about the future. If thou must come thither, thou wilt come armed with the same reason which thou appliest now to the present.

Marcus Aurelius, Meditations 7.8, translated by C. R. Haines