你无法满足所有人的要求。
无思无虑，心境应当平静如水；不求冒进也不忘记，学业当如流水一般永无止境。
世界上充满了神奇的事物，耐心地等待着我们的感官变得更加敏锐。
The goal of mathematics is to understand the structures that underlie the phenomena we observe.
We may be older now, but the passion for performing is still the same.