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數學是過去與未來的對話。

The lightning that precedes the thunder is a common image of the warnings that come before calamity.

The thrill of discovery never gets old.

玩耍是童年的語言，書籍也應該用這種語言表達。

"The hardest part of design is keeping features out."

The true investor scarcely ever is forced to sell his shares, and at all other times he is free to disregard the current price quotation.

我們都在陰溝里，但仍有人仰望星空。