I think that failure by your own standards is certainly a form of success.

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

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

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

Failure is not fatal, but failure to change might be.

Every adversity, every failure, every heartache carries with it the seed on an equal or greater benefit.

The only real failure in life is not to be true to the best one knows.

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

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

The great question is not whether you have failed, but whether you are content with failure.