表达对人生无常的感悟，认为聚散悲欢皆有缘由
Every tree planted today is a legacy for tomorrow's generations.
数学的历史是人类好奇心和创造力的历史。
I don't want to live forever, but I do want to live while I'm alive.
The culture industry not so much adapts to the reactions of its customers as it adjusts them.