The kind of thoughts you frequently have will make your mind of the same kind, for your mind is dyed by your thoughts.[Οἷα ἂν πολλάκις φαντασθῇς, τοιαύτη σοι ἔσται ἡ διάνοια˙ βάπτεται γὰρ ὑπὸ τῶν φαντασιῶν ἡ ψυχή.]

Source:The Meditations (ed. Bobbs-Merrill, 1963), (tr. Grube), Book 5, #16, Page 43
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