当市场下跌时，你轻易的将好东西打折变卖，但是一旦市场向上，再想买回来，难之又难。
You can always juice sales by going down-market, but it's hard to go back upmarket.
投资于低排放技术不仅对地球有益，也具有良好的商业意义。
I believe that love is a better teacher than the sense of duty， he said， at least for me.
The difference between animals and humans is that humans are capable of reasoning， but even that is unreliable.
《在陆军军官学校开学典礼的演说》（1924年6月16日）