Navy Admiral William H. McRaven, one of the most decorated US commanders, delivers one of the best motivational speeches you will ever hear.

Key notes: Life is a struggle and the potential for failure is ever present, but those who live in fear of failure, or hardship, or embarrassment will never achieve their potential. Without pushing your limits, without occasionally sliding down the rope headfirst, without daring greatly, you will never know what is truly possible in your life.