The Art of Tetman Callis

“In our transactions with other men it is by action that some become just and others unjust, and it is by acting in the face of danger and by developing the habit of feeling fear or cowardice that some become brave men and others cowards. The same applies to the appetites and feelings of anger: by reacting in one way or in another to given circumstances some people become self-controlled and gentle, and others self-indulgent and short-tempered. In a word, characteristics develop from corresponding activities. For that reason, we must see to it that our activities are of a certain kind, since any variations in them will be reflected in our characteristics. Hence it is no small matter whether one habit or another in inculcated in us from early childhood; on the contrary, it makes a considerable difference, or, rather, all the difference.” – Aristotle, Nicomachean Ethics, Book 2, Ch. 1