真理不需要华丽的装饰。
Truth needs no ornate decoration.
If you don't make mistakes, you're not trying hard enough.
解释：看见美丽的容貌就心悦，是人之常情。
Believe nothing you hear， and only one half that you see.
In mathematics, the journey is often more important than the destination.
我被教导说，进步的道路既不迅速也不容易。