"I remember when I was about 20, I watched people running and jumping off this high cliff into the sea in Jamaica. I can't swim, and I was terrified. It was unbearable to watch other people jump and be that frightened of doing it myself. I couldn't leave that place without going off the cliff so, for about three minutes, I stood there on the edge, scared, thinking, 'This is ridiculous.' Then I jumped off the cliff, feet first, and went in the water.

I can't run away when I'm scared. I always have to attack. That's how I deal with seemingly difficult things. I've learned to use it (fear), to flip that negative energy around and make it a challenge. I keep going because I doubt myself. It drives me to be better. I've learned that the mastery of self-doubt is the key to success."

— Will Smith, musician and actor best known for TV’s Fresh Prince of Bel Air and movies like Independence Day and Ali.