I hope that in this year to come, you make mistakes. Because if you are making mistakes, then you are making new things, trying new things, learning, living, pushing yourself, changing yourself, changing your world. You're doing things you've never done before, and more importantly, you're doing something.

道理明白则气势旺盛，气势旺盛则文辞畅达。

每个数学问题都有解决方案，但并非每个解决方案都显而易见。