"There are four types of men in this world: 1. The man who knows, and knows that he knows; he is wise, so consult him. 2. The man who knows, but doesn't know that he knows; help him not forget what he knows. 3. The man who knows not, and knows that he knows not; teach him. 4. Finally, there is the man who knows not but pretends that he knows; he is a fool, so avoid him."
"My mother drew a distinction between achievement and success. She said that achievement is the knowledge that you have studied and worked hard and done the best that is in you. Success is being praised by others. That is nice but not as important or satisfying. Always aim for achievement and forget about success."
"I have always felt that although someone may defeat me, and I strike out in a ball game, the pitcher on the particular day was the best player. But I know when I see him again, I'm going to be ready for his curve ball. Failure is a part of success. There is no such thing as a bed of roses all your life. But failure will never stand in the way of success if you learn from it."
This quotation can be viewed in the context of a book