Start-ups make so many mistakes that the challenge to identify the root cause of a failure is tough. But believing in your own plan is probably the worst.

Even when you have doubts take that step. Take chances. Mistakes are never a failure - they can be turned into wisdom.

It takes two to make a marriage a success and only one to make it a failure.

There are no mistakes save one: the failure to learn from a mistake.

Failure is a great teacher and I think when you make mistakes and you recover from them and you treat them as valuable learning experiences then you've got something to share.

Creative risk taking is essential to success in any goal where the stakes are high. Thoughtless risks are destructive of course but perhaps even more wasteful is thoughtless caution which prompts inaction and promotes failure to seize opportunity.

You build on failure. You use it as a stepping stone. Close the door on the past. You don't try to forget the mistakes but you don't dwell on it. You don't let it have any of your energy or any of your time or any of your space.

Do not blame anybody for your mistakes and failures.

It is not because the truth is too difficult to see that we make mistakes... we make mistakes because the easiest and most comfortable course for us is to seek insight where it accords with our emotions - especially selfish ones.

Do not brood over your past mistakes and failures as this will only fill your mind with grief regret and depression. Do not repeat them in the future.