数学是一门活生生的学科，随着新的思想和发现不断演变。
Mathematics is a living subject, constantly evolving with new ideas and discoveries.
Every experiment, whether successful or not, is a step toward understanding.
世界上最让我难以理解的就是所得税。
I believe that man will not merely endure: he will prevail. He is immortal, not because he alone among creatures has an inexhaustible voice, but because he has a soul, a spirit capable of compassion and sacrifice and endurance.
旋律是音乐的本质。
你的声誉是你最重要的货币，要坚决保护它。
记着时间就是金钱。