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A mathematician's work is never done; there are always more problems to solve.

"The challenge of acting is to make the audience forget they are watching a performance."

Don't have good ideas if you aren't willing to be responsible for them.

語言是存在的家。人在其中棲居。

The revolution is a long and arduous struggle, but with determination and unity, victory is certain.

如果你不準備犯錯，你永遠不會想出任何原創的東西。