"When people make the mistake of underestimating me, that's when they are really in for their biggest surprise."

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Sometimes people - especially people over 40 - underestimate what they really are capable of. They believe they're not capable of doing something great. I tell people who are over 40, "I don't want your best. I want better than that. I want better than what you perceive your best is."

— Jack LaLanne