It is unwise to be too sure of one's own wisdom. It is healthy to be reminded that the strongest might weaken and the wisest might err.
- Mahatma Gandhi
I always think that learning from the experienced and wise is a need. Nobody is perfect. Thus, there will always be things that you can learn and things that you should not learn. That is what many of us are thinking.
Have you ever think of learning things from a person which has less experience and is younger than you? Looking from another point of view, this is something which is not wrong as well. When we have been doing something over and over again, sometimes we tend to get used to it and overlooked our mistakes. Some people may be younger than us but they listen, the observe and they think more than us. When it come to knowledge, age, gender, race and all those shouldn't be made an obstacles.
When you think you are too good, look up, there will be people better than you. When you think you are doing really bad, look from a different perspective, how you can make yourself feel better or look down and see the people worse than you. Help them if you are capable of - you experienced the times where you looked down on yourself. You know how they feel, help them.
Looking at successful people should not discourage you and looking at unsuccessful people is not for you to laugh at them, but everything should be made an encouragement for you to proceed and improve life, making the world a better place to live.