The only real mistake is the one from which we learn nothing.

Failure is the oppurtunity to begin again more intelligently.

Failure is only the opportunity more intelligently to begin again.

Life is a series of experiences, each one of which makes us bigger, even though sometimes it is hard to realize this

Obstacles are those frightful things you see when you take your eyes off the goal.

Failure is simply the opportunity to begin again, this time more intelligently.