“Genius may have its limitations, but stupidity is not thus handicapped.”

“Constant effort and frequent mistakes are the stepping stones to genius.”

“Every man is a damn fool for at least five minutes every day; wisdom consists in not exceeding the limit.”

“It's a fine thing to have ability, but the ability to discover ability in others is the true test.”

“A retentive memory may be a good thing, but the ability to forget is the true token of greatness.”

“The great man is not so great as folks think, and the dull man is not quite so stupid as he seems. The difference in our estimates of men lies in the fact that one individual is able to get his goods into the show-window, and the other is not aware that he has any show-window or any goods.”

“Life is unrest, and its passage at best a zigzag course, that only straightens to a direct line when viewed across the years.”