"The true beginning of wisdom is the desire of discipline."
—Wisdom of Solomon.
"Censure and criticism never hurt anybody. If false they can't hurt you unless you are wanting in manly character; and if true, they show a man his weak points, and forewarn him against failure and trouble."—Gladstone.
"If there's anything worse than knowing too little, it's knowing too much. Education will broaden a narrow mind, but there's no cure for a big head. The best you can hope is that it will swell up and bust, and then, of course, there's nothing left. Poverty never spoils a good man, but prosperity often does. It's easy to stand hard times, because that's the only thing you can do, but in good times the fool-killer has to do night work."—Lorimer: Letters from a Self-made Merchant to his Son at College.
Intellectual modesty is quite consistent with self-reliance and mental courage.
The study of books too often leads to intellectual arrogance, which is the surest bar to real mental progress. Realize the limitations of your own knowledge; see clearly what you know and what you do not know, otherwise you will see the things you know out of proportion. Make sure, however, that you know the fundamentals. Socrates said that a knowledge of our ignorance is the first step toward true knowledge, and a Persian proverb says:
"He who knows not, and knows not that he knows not, is a fool; shun him.
He who knows not, and knows that he knows not, is a child; teach him.
He who knows, and knows not that he knows, is asleep; wake him.
He who knows, and knows that he knows, is wise; follow him."
Ask yourself, which of these classes you belong to.
(i) REMEMBER THAT THE OBJECT OF STUDY SHOULD BE TO GAIN WISDOM, RATHER THAN KNOWLEDGE.—Facts are important and must be learned; but far more important is it to gain wisdom and to train the mind and judgment so that truth may be distinguished from error. As the poet says:
"Knowledge and wisdom, far from being one,
Have ofttimes no connection. Knowledge dwells
In heads replete with thoughts of other men;
Wisdom, in minds attentive to their own.
Knowledge is proud that he has learned so much,
Wisdom is humble that he knows no more."
The above points all have to do with the mental attitude of the student, and may be summarized by simply stating that the student must be possessed of mental courage, self-reliance, discrimination, modesty, and caution, all in proper proportion.