Great people have great egos; maybe that's what makes them great.
Everybody wants to be good, but not many are prepared to make the sacrifices it takes to be great. To many people, being nice in order to be liked is more important. There's equal merit in that, but you must not confuse being good with being liked.
It's not how good you are, it's how good you want to be.
Instead of waiting for perfection, run with what you've got, and fix it as you go.
If you can't solve a problem, it's because you're playing by the rules
Do not covet your ideas.