"The amount of good which a man can do to mankind can never be measured by the amount of money he gives."

"The very best thing in life is to have a clear purpose."

"I am a person of very strong feelings, and I am not a person who can express them."

"The greatest egotism is to complain of the world."

"I am of the opinion that there are very few things which an intelligent mind may not make more intelligible to another."