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

Fall seven times, stand up eight.

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

Nothing can destroy a government more quickly than its failure to observe its own laws, or worse, its disregard of the charter of its own existence

Do not be too timid and squeamish about your actions. All life is an experiment. The more experiments you make the better. What if they are a little course, and you may get your coat soiled or torn? What if you do fail, and get fairly rolled in the dirt once or twice. Up again, you shall never be so afraid of a tumble.

If all else fails, destroy all evidence that you tried.

I have no failed. I've just found 10,000 ways that won't work.

For every winner there are dozens of losers. Odds are, you're one of them.

Failure is not the only punishment for laziness; there is also the success of others.

You miss 100 percent of the shots you never take.