"Heaven is to me as definite a world as Europe or the United States."

"It is not my intention to be fulsome, but I confess that I feel the most profound respect for the man for whom no mystery is too abstruse, and no problem too intricate."

"Man is an ape, and woman is a cat."

"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…"

"We are all pilgrims on a journey."