"The reasonable man conforms to society's will.
  The unreasonable man attempts to conform society to his will.
  Therefore all progress is owed to the unreasonable man." George Bernard Shaw

"He who gets mad, gets mad at himself." Arab Proverb

"With all thy getting, get understanding." Malcolm Forbes

"A mistake is only a mistake, if one fails to correct it." Chinese Proverb

"To reach the fruit of a tree, you have to go out on a limb." Mark Twain

"We are what we repeatedly do. Excellence then is a habit, not an act." Aristotle

"The squeaky wheel gets oiled." Not sure who... but I like this one better... "The nail that sticks up gets hammered." Chinese Proverb

"If at the age of 20, a person doesn't belive in communism, he or she has no spirit.
  If by the age of 30, a person doesn't believe in capitalism, he or she has no brains." Polish Proverb

"Have faith and pursue the unknown end. The trial, by all means, must be made unless one would bear a spirit altogether abject,
  for there is no comparison between that which we lose by not succeeding and by not trying." Francis Bacon, 1598

"At least I'm trying." Stan (me), 1997

I'm always looking for quotes. Have any?