每个人持续不断地努力改善自己的状况，这是公共、国家以及私人富裕最初来源的原则。
The uniform， constant， and uninterrupted effort of every man to better his condition， the principle from which public and national as well as private opulence is originally derived.
Forestry isn't extraction—it's cultivation on nature's timescale.
【释义】令人快乐的事情有很多种类，不能固执地用同一种标准来讨论。
一个人如果吃不好，就无法好好思考、好好去爱、好好休息。
我们每个人出生时都带着一套独特的潜能，我们生活中的任务就是尽可能多地实现它们。