We think of an object when we see or feel it. Our words are a reflection of our thoughts. Whatever we think about, we put it into words. Our brains evaluate the objects we see and hear based on what we feel, see, and hear with our senses, and express them in words based on the intensity of our thoughts. The ability to evaluate the thoughts of all people in the world is different. This is why 10 people feel and see the same object in the same way, but these 10 people think about the object differently because they mentally evaluate the object based on their thoughts. Therefore, although the objects are the same and the language is the same, the words of the ten people are different. Thoughts are processes that occur in the human brain. Thoughts are not affected by the environment and do not depend on the environment. Thoughts relate to knowledge or ignorance. Thoughts and life are closely related. A person's thoughts continue to change throughout his life. As he lives his life, his life changes. As he gained experience, his ideas began to change. Therefore, the old man's thoughts contain his life experience and have a guiding effect on others. The foundation of the human society we live in today must have been laid by an old man with his profound thoughts at a certain moment, because only an old man can give such great thoughts from his experience. Whenever any disaster occurs in human society, it will always be solved by the elderly. Even today, if there is a problem in the family, it will be solved by the elders. In the administration of every country, those with more work experience and independent thinking will receive more respect and important positions. Even less educated people sometimes say things that great scientists cannot.