"No man becomes rich unless he enriches others."

"I believe that the best way to educate a child is to teach him to think for himself."

"The man who is afraid to make a mistake is afraid to do anything."

"It marks a big step in a man's development when he comes to realize that other men can help him do a better job than he could do alone."

"The law of competition, therefore, it may be said, is here, for the present, at least, and for the individual, beneficial, because it insures the survival of the fittest in every department."