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

Failure is simply a few errors in judgment, repeated every day.

If you're not failing every now and again, it's a sign you're not doing anything very innovative.

Defeat is not the worst of failures. Not to have tried is the true failure.

I don't believe in failure. It is not failure if you enjoyed the process.

It is not a disgrace to fail. Failing is one of the greatest arts in the world.

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

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

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

Failure is more frequently from want of energy than want of capital.