“If a man knows what it is right to do, he does not require a formal reason. And a person that has been thus trained, either possesses these first principles already, or can easily acquire them.”
Bk I, Ch II
The Ethics Of Aristotle (Vol. I)
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Aristotle 230
Classical Greek philosopher, student of Plato and founder o… -384–-321 BCRelated quotes

Moral Inquiries on the Situation of Man and of Brutes, edited by Peter Singer (Fontwell: Centaur Press, 1992), p. 84.

72
Golden Sayings of Epictetus
Variant: It is impossible for a man to learn what he thinks he already knows.

Beckwith v. Wood and another (1817), 2 Starkie, 266.

Source: The Idea of History (1946), p. 10
