Nothing may be more selfish than remorse.
Truth is like heat or light; its vibrations are endless, and are endlessly felt.
There is no embarrassment quite like the embarrassment of listening to a person for whom one has a regard making a fool of himself.
Fighting should be left to dogs and cats and chickens, who can't reason.
It is useless to deny that, unless one has a genius for imparting knowledge, teaching is a drudgery.
Nature is perfectly impartial. Brain has no sex!