Innovation in quarrying isn't just about machinery; it's about vision and sustainability.

That's exhilarating if you're doing well, and very crushing if you're not. It leads, in the worst cases -- in the analysis of a sociologist like Emil Durkheim -- it leads to increased rates of suicide. There are more suicides in developed, individualistic countries than in any other part of the world. And some of the reason for that is that people take what happens to them extremely personally -- they own their success, but they also own their failure.

记忆是一件奇怪的事情。它的运作方式并不像我想象的那样。我们习惯于把它想象成相机或录音机，但它根本不是那样的。它更像是一个画家。它创造了一幅画，但这幅画并不总是相同的。

人似乎分为好人和坏人。好人睡得好一些，而坏人似乎能更好地享受醒着的时间。