数学中最深刻的思想往往源于最简单的观察。

In the realm of mathematics, every problem is an opportunity to discover something new and profound.

What is broken can sometimes hold more meaning than what is whole.

In this world, no one can make you fall. If your faith still stand.

大自然为所有活动都观察了合适的时间。

我从十五岁开始致力于学习，三十岁便能自立于社会了，四十岁对各种事理不再迷惑不解，五十岁懂得了自然界的规律，六十岁对听到的事情能领会贯通，并能辨别是非真伪，七十岁时做事能随心所欲，但又不会超出礼法的规范。