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遞歸是計算的根源，因為它需要時間來描述。

No individual has any right to come into the world and go out of it without leaving behind him distinct and legitimate reasons for having passed through it.

Every man is a moon and has a dark side which he never shows to anybody.

神經系統就像一個復雜的管弦樂隊，每個神經元都在發揮自己的作用。