The key to life is accepting challenges. Once someone stops doing this, he's dead.
Be loyal to those who are loyal to you. And respect everyone, even your enemies and competition.
I personally think if something's not a challenge, there's no point doing it, because you're not gonna learn much.
Challenges make you discover things about yourself that you never really knew.
I like to go against the grain, against what's out there. Every day is like a challenge.
No dream is too big. No challenge is too great. Nothing we want for our future is beyond our reach.
Life is never completely without its challenges.
Everything negative - pressure, challenges - is all an opportunity for me to rise.
Women, like men, should try to do the impossible. And when they fail, their failure should be a challenge to others.
When somebody challenges you, fight back. Be brutal, be tough!
Accept the challenges so that you can feel the exhilaration of victory.
Sometimes the hurdles aren't really hurdles at all. They're welcome challenges, tests.
You might win some, you might lose some. But you go in, you challenge yourself, you become a better man, a better individual, a better fighter.
If it doesn't challenge you, it doesn't change you.
I think we're going to the moon because it's in the nature of the human being to face challenges.