He's a famous mathematician. Great guy.

大数学家，不得了！

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After studying so hard to learn, later, became a famous mathematician.

也就是经过这样勤奋学习再学习，后来，成为了著名的数学家。

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Aristotle was the founder of traditional logic, and G-Frege, a famous mathematician of German, was the founder of modern mathematical logic.

亚里士多德是传统逻辑的创始人。弗雷格，德国著名的数学家，逻辑学家，是现代数理逻辑的创始人。

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A famous mathematician once said "Every question must have a correct answer " for every question one answer."

一位著名的数学家曾说过,“每一个问题都必定有一个正确的答案,每一个人们所回答的问题“

耶鲁公开课 - 政治哲学导论课程节选

Robert Solow was once asked (by a very famous mathematician whose name I have forgotten) whether there was anything in the social sciences that was not obvious or trivial.

FORBES: Most Economics is Just Organised Common Sense

After a psychologist noted that many famous people suffer from schizophrenia including mathematician John Nash of A Beautiful Mind fame Moussaoui soon proclaims to the gallery, "A beautiful terrorist mind!"

NPR: Moussaoui Courts Death, and the Media, at Trial

In 1900, David Hilbert, a German mathematician and contemporary of Einstein's, in a famous speech to the International Congress of Mathematicians, presented a list of what he considered to be the 23 most important problems for the new century.

ECONOMIST: Mathematics