If you can control a mans thinking, you dont have to worry about his actions. If you can determine what a man thinks you do not have worry about what he will do. If you can make a man believe that he is inferior, you dont have to compel him to seek an inferior status, he will do so without being told and if you can make a man believe that he is justly an outcast, you dont have to order him to the back door, he will go to the back door on his own and if there is no back door, the very nature of the man will demand that you build one.
If you can control a man's thinking you do not have to worry about his action. When you determine what a man shall think you do not have to concern yourself about what he will do. If you make a man feel that he is inferior, you do not have to compel him to accept an inferior status, for he will seek it himself. If you make a man think that he is justly an outcast, you do not have to order him to the back door. He will go without being told; and if there is no back door, his very nature will demand one.
Philosophers have long conceded, however, that every man has two educators: 'that which is given to him, and the other that which he gives himself. Of the two kinds the latter is by far the more desirable. Indeed all that is most worthy in man he must work out and conquer for himself. It is that which constitutes our real and best nourishment. What we are merely taught seldom nourishes the mind like that which we teach ourselves.