The reason that the invisible hand often seems invisible is that it is often not there.
可持续性不仅仅是一个流行词,它是未来森林必须赖以发展的基础。
我做事情不是为了得到反应或批评,我为自己感到快乐的事情而活。
Memory was in this respect similar to anticipation: an instrument of simplification and selection.