In law a man is guilty when he violates the rights of others. In ethics he is guilty if he only thinks of doing so.
One who makes himself a worm cannot complain afterwards if people step on him.
Experience without theory is blind, but theory without experience is mere intellectual play.
Ingratitude is the essence of vileness.
We are not rich by what we possess but by what we can do without.
Look closely. The beautiful may be small.
The greatest human quest is to know what one must do in order to become a human being.
Always recognize that human individuals are ends, and do not use them as means to your end.
Rules for Happiness: something to do, someone to love, something to hope for.