To live is to learn: Even fruit flies can learn to avoid detrimental odors and also in humans, most abilities are based on what we learn through practice and experience.

活到老，学到老：连果蝇都能学会如何避免有害的气味，同样，人的许多能力也是在实践和经验中学会的。

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They should learn through active practice, how to be change agents.

NPR: America's Troubled Schools Need Reform Now

Cesar had played quarterback for his high school football team and knew that through practice and repetition the human brain can learn almost any skill.

FORBES: Robert Greene: How to Become the Master of Any Skill