Instead of being afraid of the challenge and failure, be afraid of avoiding the challenge and doing nothing

Man is not interesting without some imperfection

Success represents the 1% of your work which results from the 99% that is called failure.

Success is ninety-nine percent failure.

We only have one future, and it will be made of our dreams, if we have the courage to challenge convention.

Success is 99 percent failure.

90% of success is failure.