The interplay between analysis and algebra is the driving force behind many breakthroughs in number theory.
The poem is a way of understanding the world, not just explaining it.
译文：少年不知道早起勤奋学习，到老了后悔读书少就太迟了。赏析：人在年轻时，精力旺盛，正是勤奋读书，努力奋斗的时候。
生命中唯一不变的是变化。
译文：明亮的月光掠过枝头，惊飞了树上的喜鹊;清凉的夜风中，半夜里蝉儿发出阵阵鸣叫。在稻花的香气里，人们谈论着丰收的年景，耳边传来一片青蛙的叫声。
Memory is a kind of accomplishment, a sort of renewal.