It's fine to celebrate success but it is more important to heed the lessons of failure.

Failure comes from ego, greed, envy, fear, imitation. I have success not because I am smart, but because I am rational.

Success is my only option, failure's not.

Many of life's failures are people who did not realize how close they were to success when they gave up.

Don't take 'no' for an answer, never submit to failure. Do not be fobbed off with mere personal success or acceptance. You will make all kinds of mistakes, but as long as you are generous and true, and also fierce, you cannot hurt the world or events.

I've often felt there might be more to be gained by studying business failures than business successes.