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Mathematics is not a spectator sport.

Keep learning. It's the only way to stay relevant in a fast-changing world.

You have to be willing to make mistakes; the big thing is to not make the same mistake over and over again.

思想掠過我的心上，如一群野鴨飛過天空。我聽見它們鼓翼之聲了。

沒有目標的利潤最終是不可持續的。