The most important skill in mathematics is the ability to think clearly.

法规不应该扼杀为国家提供动力的行业。

数学研究是一次进入未知的旅程，每一次发现都为新的谜题打开了大门。

Vanity and pride are different things, though the words are often used synonymously.

Happiness is not something that happens. It is not the result of good fortune or random chance. It is not something that money can buy or power command. It depends not on what happens outside of you, but on what happens inside of you.

我是一个美国黑人，我为我的种族感到骄傲。我为自己是谁感到骄傲。我有许多自豪和尊严。