Nothing may be more selfish than remorse.

As soon as you feel too old to do a thing, do it.

It is useless to deny that, unless one has a genius for imparting knowledge, teaching is a drudgery.

Truth is like heat or light; its vibrations are endless, and are endlessly felt.

as everybody knows, truthfulness and agreeable manners are often divorced on the ground of incompatibility.

gossip, after it reaches a certain point of insult and falsehood, becomes a source of amusement to its victims.

... when personal happiness conflicts with any great human ideal, the right to claim such happiness is as nothing compared to the privilege of resigning it.