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

Great success always comes at the risk of enormous failure.

Success is stumbling from failure to failure with no loss of enthusiasm.

Success is not final, failure is not fatal: it is the courage to continue that counts.

I was relentless, even in the face of total lack of encouragement, because much more often than you'd think, sheer persistence is the difference between success and failure.

If you don't give people a chance to fail... you won't innovate... if you wanna be an innovative company allow people to make mistakes.