Without language, man has no mechanism for developing thought. Unlike animals, humans learn to act and behave as humans through language. The Child of Aveyron was found living in isolation, lacked language, and unable to learn it, continued to live in an isolated world. It was a world of internal silence, without shared ideas, without connection to others. Without language, he could not become part of culture, and could not share our way of life.
Culture is the key to what people become.
It is language that allows us to visualize the concept of man and see a projection of ourselves in others of our species. We think in a flexible manner, where there is room for the unsure and the gray. Our concept of man is molded by our own ability to communicate and interact effectively in ways that allow for variety and yet for a very discriminate selection.