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The only performance standard is Zero Defects.

Art should serve the people.

如果你不知道，意見有什么用？

I am not without possessions; I have freedom.

You can't just sit there and wait for people to give you that golden dream. You've got to get out there and make it happen for yourself.

在數學中，提出問題的藝術必須比解決問題更有價值。