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無(wú)論是個(gè)人還是國(guó)家，只要生活節(jié)儉，就會(huì)繁榮昌盛；如果貪圖享受，放縱欲望，那就會(huì)走向衰亡。

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

對(duì)早期宇宙的研究不僅僅是關(guān)于理解過(guò)去，也是關(guān)于揭示支配所有現(xiàn)實(shí)的基本法則。

宇宙是一本用數(shù)學(xué)語(yǔ)言寫成的書，而物理學(xué)是解讀其頁(yè)面的鑰匙。