"Pain and suffering are always inevitable for a large intelligence and a deep heart. The really great men must, I think, have great sadness on earth."
"How glorious it is, and also how painful, to be an exception."
"And in the end it's not the years in your life that count. It's the life in your years"
- Abraham Lincoln
"Keep away from people who try to belittle your ambitions. Small people always do that, but the really great make you feel that you, too, can become great"
- Mark Twain
Quotes from: here and other blogs (sorry, i forgot the names).