The true test of a civilization is not the census, nor the size of cities, nor the crops—but the kind of man the country turns out.
文明的真正考验不是人口普查，不是城市的规模，也不是庄稼的产量——而是这个国家培养出什么样的人。
"The only true voyage of discovery, the only fountain of Eternal Youth, would be not to visit strange lands but to possess other eyes, to behold the universe through the eyes of another, of a hundred others, to behold the hundred universes that each of them beholds."
对付一个不自由的世界唯一的方法就是变得如此绝对自由，以至于你的存在本身就是一种反叛。
The greatest happiness for the laborer consists in having an abundant supply of the necessaries of life.
好奇心是科学的驱动力。
Science is not a game for one person.
预测未来的唯一方法是有能力塑造它。