One has to accept certain things in life either willingly or unwillingly. Learn the art of acceptance. It is easy to reject, but only a great mind can accept. Acceptance is a phenomenon of maturity. Man is a justification seeking animal. So, maturity means the ability to justify your action. Maturity means more knowledge, more experience. It is a process that occurs on an unconscious level. If you are a developed mind then your mind can analyse instantly. Only he is a developed mind who, consciously or unconsciously, can analyse things instantly. He does not need to refer to books, data or encyclopædia.
