Art is the bridge between the visible and the invisible.
“柠檬问题”指的是当卖家比买家掌握更多信息时,评估产品质量的困难。
为何一个人建了一堵墙,另一个人马上就想知道墙的另一边是什么?
I never saw a problem that I did not attempt to solve by mechanical means.