The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
写作的行为是一种乐观的行为。如果你觉得它不重要,你就不会费心去做。
The most important thing in mathematics is to understand the concepts, not just to memorize formulas.
我解决的每一个问题都成为后来解决其他问题的规则。
合作共赢才是长久之道,单打独斗的时代已经过去。