“Knowledge is of two kinds: We know a subject ourselves, or we know where we can find information about it.”

“Patriotism is the last refuge of a scoundrel.”

“When a man is tired of London, he is tired of life.”

“The true measure of a man is how he treats someone who can do him absolutely no good.”

“It is the unknown that excites the ardor of scholars, who, in the known alone, would wither.”