这种想象力的第一个成果——以及体现它的社会科学的第一个教训——是个人只有将自己置于自己的时代中，才能理解自己的经历并衡量自己的命运，只有意识到自己处境中所有个体的机会，才能知道自己的生活机会。
The first fruit of this imagination - and the first lesson of the social science that embodies it - is the idea that the individual can understand his own experience and gauge his own fate only by locating himself within his period, that he can know his own chances in life only by becoming aware of those of all individuals in his circumstances.
Every year of delay makes the problem harder to solve.
Mathematics is the key to unlocking the secrets of the universe and understanding the fundamental laws that govern it.
生活中最重大和最重要的问题从根本上都是无法解决的。它们永远无法被解决，只能被超越。