The greatest discovery of my generation is that a human being can alter his life by altering his attitudes.
我这一代人最伟大的发现是人类可以通过改变态度来改变生活。
In the desert, I found a freedom that the city could never offer.
The weight of evidence for an extraordinary claim must be proportioned to its strangeness.
煤炭的未来在于更清洁的技术和更智能的资源管理。