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"In the middle of difficulty lies opportunity."

代數分析是所有科學中最廣泛和最確定的；它是唯一具有不變和可靠方法的一門科學。

I'm a feminist, but I think that romance has been taken away a bit for my generation. I think what people connect with in novels is this idea of an overpowering, encompassing love—and it being more important and special than anything and everything else.

"When I believe in something, I'm like a dog with a bone."

自然的統一性不是一個事實，而是一項任務。

The knowledge of the circumstances of which we must make use never exists in concentrated or integrated form, but solely as the dispersed bits of incomplete and frequently contradictory knowledge which all the separate individuals possess.

孩子的精神比一般人認為的更為高尚。