上士闭心，中士闭口，下士闭门。
对于非礼的事，上等到的士人根本不想；对于非礼的事，中等的士人从来不说；对于非礼的事，下等的士人紧闭门户。
The art of competing, I’d learned from track, was the art of forgetting, and I now reminded myself of that fact. You must forget your limits. You must forget your doubts, your pain, your past.
古今来世代显贵家族，无不因积德造就；天地之间第一等好人品，还是由读书培养。
数学之美在于它能够揭示现实的隐藏结构。
The biggest adventure you can take is to live the life of your dreams.
