"The most difficult problems are found in the simplest things."

"To a great mind, nothing is little."

"You know my method. It is founded upon the observation of trifles."

"I think the average woman is rather foolish."

"My mind rebels at stagnation. Give me problems, give me work, give me the most abstruse cryptogram, or the most intricate analysis, and I am in my own proper atmosphere. But I abhor the dull routine o…"