“Positive anything is better than negative nothing.”

“Nothing is impossible.”

“One should not pursue goals that are easily achieved. One must develop an instinct for what one can just barely achieve through one's greatest efforts.”

“Fear defeats more people than any other one thing in the world.”

“There are trivial truths and the great truths. The opposite of a trivial truth is plainly false. The opposite of a great truth is also true.”

“I don't pity any man who does hard work worth doing. I admire him. I pity the creature who does not work, at whichever end of the social scale he may regard himself as being.”