“「The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts.」”

“「The secret of happiness is this: let your interests be as wide as possible, and let your reactions to the things and persons that interest you be as far as possible friendly rather than hostile.」”

“「He that raises a large family does, indeed, while he lives to observe them, stand a broader mark for sorrow; but then he stands a broader mark for pleasure too.」”