Never let the future disturb you. You will meet it, if you have to, with the same weapons of reason which today arm you against the present.[Τὰ μέλλοντα μὴ ταρασσέτω˙ ἥξεις γὰρ ἐπ αὐτά, ἐὰν δεήσῃ, φέρων τὸν αὐτὸν λόγον ᾧ νῦν πρὸς τὰ παρόντα χρᾷ.]

Source:Meditations (ed. Penguin, 1964), (tr. Staniforth), Book 7, #8, Page 106
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