"Experience is simply the name we give our mistakes."

"Experience is one thing you can't get for nothing."

"Man becomes man only by his intelligence, but he is man only by his heart."

"Wit is educated insolence."

"Mad, adj.: Affected with a high degree of intellectual independence."

"Genius ain't anything more than elegant common sense."

"Genius is nothing but a great aptitude for patience."

"A harmless hilarity and a buoyant cheerfulness are not infrequent concomitants of genius; and we are never more deceived than when we mistake gravity for greatness, solemnity for science, and pomposity for erudition."

"We should take care not to make the intellect our god; it has, of course, powerful muscles, but no personality."

"It's not that I'm so smart, it's just that I stay with problems longer."