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Ignorance is not innocence but sin.

The only limit to our realization of tomorrow will be our doubts of today.

多樣性是我們的力量，但包容是我們的選擇。

Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.

材料有自己的智慧。

寫作是一種不被中斷的說話方式。