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

The most important of my discoveries have been suggested to me by my failures.

Outward failure may be a manifested variant of inward success.

Don't be afraid of missing opportunities. Behind every failure is an opportunity somebody wishes they had missed.

It's not a very high failure rate if you choose people that you really like the sound of.

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

Failure is instructive. The person who really thinks learns quite as much from his failures as from his successes.

Failure is nature's plan to prepare you for great responsibilities.

Do not let your ambitions become a sanctuary for your failures.

I think success has no rules, but you can learn a great deal from failure.