The true test of civilization is not the census, nor the size of cities, nor the crops, but the kind of man that the country turns out.

Sun don't shine forever, but as long as it's here then we might as well shine together.

创造性力量很容易变成破坏性力量。这只取决于人们的道德人格：是用此力量做好事或做坏事。如果人们缺乏这种道德人格，则没有一种说教能够提供它或取而代之。

循环经济不仅仅是一个理想——它是一个等待扩展的实用商业模式。