"Just because something doesn't do what you planned it to do doesn't mean it's useless." (suits to people evenly)
-- Thomas Alva Edison
"To make mistakes is human; to stumble is commonplace; to be able to laugh at yourself is maturity."
"The best years of your life are the ones in which you decide your problems are your own. You don't blame them on your mother, the ecology, or the President. You realize that you control your own destiny."
-- Albert Ellis
"The truth is that there is nothing noble in being superior to somebody else. The only real nobility is in being superior to your former self."
-- Whitney Young
"This art of resting the mind and the power of dismissing from it all care and worry is probably one of the secrets of energy in our great men."
-- Captain J. A. Hadfield