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The definition of a good mathematical problem is the mathematics it generates rather than the problem itself.
A person may cause evil to others not only by his actions but by his inaction, and in either case, he is justly accountable to them for the injury.
"To understand a person, you must first understand the stories they tell themselves."
The greatest sweetener of human life is Friendship. To raise this to the highest pitch of enjoyment, is a secret which but few discover.
成功者与其他人之间的区别不是缺乏力量,也不是缺乏知识,而是缺乏意志。
Our younger generation are going to transform this country while at the same time being transformed themselves.