"Lean gives you such stomach pain. I'll never forget the time I was at South by Southwest and had to do all these shows, and I sitting on the couch curled up, hours of pain...That wasn't the moment I quit, that was the moment when I said I need more."

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It's real easy to sit on your couch and point fingers and say, 'So-and-so did something wrong...'. But until you are out there in these cars at these speeds and seeing all the near-misses and what is really going on, it is not worth forming an opinion.

— Jimmie Johnson