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Drugs won't enhance your performance.

I have never taken any substance to enhance my performance.

I'd never heard anything about this at all.

Performance-enhancing drugs are an illusion. I wish I had never gotten involved with steroids. It was wrong. It was stupid.

Nature herself has never attempted to effect great changes rapidly.

I'm not going to respond to every single thing that Donald Trump has to say or that Hillary Clinton says.

There has never been a great athlete who died not knowing what pain is.

I was never going to give Mariah Carey any competition.

No one is ever successful at everything that they do.