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The pursuit of mathematical truth is a lifelong journey.
"The pursuit of pleasure is the only thing that gives life meaning in this meaningless world."
做好事如同背负重物而登山,志向虽已确立,但总是担心力不从心;干坏事如同骑马下山,虽然未加鞭,但却欲驻足而难以自禁。