The earliest man bore little resemblance to modern man, and very much resembled an APE. He had a rough face with a broad, flattened nose, a heavy, chinless lower jaw, and a receding forehead. Above the eyebrows was a roller, under which the eyes were hidden, as if under a canopy. Their gait was not yet quite straight, but hopping; their long arms hung below their knees. People didn’t know how to talk yet. Like animals, they terrified predators with their cries, called for help, and warned of danger
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.