A little more persistence, a little more effort, and what seemed hopeless failure may turn to glorious success.

There is no failure except in no longer trying.

The line between failure and success is so fine that we scarcely know when we pass it: so fine that we are often on the line and do not know it.

A failure is a man who has blundered but is not able to cash in the experience.

Success is stumbling from failure to failure with no loss of enthusiasm.

A series of failures may culminate in the best possible result.