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Growth is never by mere chance; it is the result of forces working together.

我不讓錯(cuò)誤讓我灰心，我讓它們教育我。

To write is to rewrite, and to rewrite is to understand.

Learning is essentially a matter of stimulus-response connections.

科學(xué)中最重要的事情是不要停止提問(wèn)。