1. Being lazy to think, unwilling to delve into and understand deeply, being complacent or satisfied with trivial knowledge are all causes of intellectual poverty. This poverty is often described in one word: "stupidity." ——Golky

2. The biggest obstacle to our learning is the known things, not the unknown things. ——Bernard

3. Never fall into pride. Because when you are proud, you will be stubborn in situations where you should agree; because when you are proud, you will reject the advice and help of friendship from others; because when you are proud, you will lose objective standards. 4. The first condition for success is to be truly open-minded and be willing to give up all your cherished prejudices as long as they are seen to conflict with the truth. ——Spencer

5. Humility is a virtue and an indispensable etiquette for people and society. We should always keep it in mind, let us learn together!