平生莫做皱眉事，世上应无切齿人。
译文：人不要做伤天害理之事，就不会有人恨得咬牙切齿。赏析：人做坏事自然就会有人讨厌，甚至是除之而后快的心。人做坏事，就是给自己带去祸患。
心灵如同冰山，浮出水面的仅占七分之一。
I don't think about limitations. I think about possibilities.
You will never be happy if you continue to search for what happiness consists of. You will never live if you are looking for the meaning of life.
"Every observation we make is a step closer to understanding the cosmos."
最优财政政策的设计应旨在减轻时间不一致性和政治经济周期引起的扭曲。