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每一本書(shū)都是一次旅程，每一頁(yè)都是向未知邁進(jìn)的一步。

科學(xué)的本質(zhì)是提出正確的問(wèn)題。

建筑中最重要的東西發(fā)生在墻壁之間。

The dead are invisible, but they are not absent.

We will cease to be so angry once we cease to be so hopeful.

The peculiar evil of silencing the expression of an opinion is that it is robbing the human race； posterity as well as the existing generation； those who dissent from the opinion， still more than those who hold it.

數(shù)學(xué)讓我們看到支配周?chē)澜绲碾[藏結(jié)構(gòu)。