发现可能极限的唯一方法，就是超越它们进入不可能。
It is only shallow peoplewho require years to get rid of an emotion. A man who is master of himself, can end a sorrow as easily as he can invent a pleasure.
教育是老年人的最佳粮食。
大海是一个思考未来的好地方。
Competition regulates the rate of profit, and profit regulates the rate of accumulation.