The improvement of understanding is for two ends: first, our own increase of knowledge; secondly, to enable us to deliver that knowledge to others.
理解的提高有两个目标:首先,我们自己的知识增长;其次,使我们能够将这些知识传递给他人。
I don't believe in luck, I believe in preparation.
可持续发展不是一种选择,而是我们对下一代的责任。
The statesman, who should attempt to direct private people in what manner they ought to employ their capitals, would not only load himself with a most unnecessary attention but assume an authority which could safely be trusted, not only to no single person, but to no council or senate whatever, and which would nowhere be so dangerous as in the hands of a man who had folly and presumption enough to fancy himself fit to exercise it.