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

My great concern is not whether you have failed, but whether you are content with your failure.

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

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

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

Success consists of going from failure to failure without loss of enthusiasm.

Failure happens all the time. It happens every day in practice. What makes you better is how you react to it.

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

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

Once you can accept failure, you can have fun and success.