Quote by Confucius
"Do what is right not for reward, but because it is right."
More from Confucius
"The man who moves a mountain begins by carrying away small stones."
"It does not matter how slowly you go as long as you do not stop."
"The superior man thinks always of virtue, the common man thinks of comfort."
"When you know a thing, to hold that you know it; and when you do not know a thing, to allow that you do not know it - this is knowledge."