The greatest thing in life is positive thinking. What is the secret to positive thinking? It is avoidance. In other words, positive attitude is the name of maturity. 
What is maturity?
Maturity is the ability to live with things we cannot change. Maturity is of utmost importance. The definition of maturity is: The ability to live with things we cannot change. We cannot change everything in life. Every person has freedom. How can you take away people's freedom?
You cannot abolish people's freedom. It is not in your power to do so. This is why maturity is the ability to live with things we cannot change. Maturity of the mind is to live normally with things which you cannot change.If you try to change, it would lead to breakdown. The effort to change may lead to breakdown. For example, as I said women are emotional. Men too have a weakness. Men have a great weakness. It is their ego. If you touch the ego of a man, he will become provoked and will begin to fight. A man's weakness is his ego and a woman's weakness is her emotional nature. The formula is: Don't touch the ego of a man. If you do so, there will be breakdown, conflict and riots.  When one's ego is touched it turns into super ego and the result is breakdown. Avoid the ego, don't awaken it. Avoid the ego if you want peace. You have to avoid touching a person's ego. Why? When one's ego is touched it turns into super ego and the result is breakdown. If you touch the ego, it becomes super ego and the result is breakdown. Don't touch the emotions of a woman. Don't touch the ego of a man. This is the secret of life.