老脑筋就像老马；如果你想保持它们的工作状态，你必须锻炼它们。
Old minds are like old horses; you must exercise them if you wish to keep them in working order.
The first step in liquidating a people is to erase its memory. Destroy its books, its culture, its history.
伟大的品牌是一次一个满意顾客建立起来的。