Our life is so full of occupations that we have little time to observe the animals. If we did, we should see that most of their language is movement. They speak little with one another, mostly they express by their motions. If you call a dog, the dog will at once begin to wag its tail; it will move its whole body to show its joy and affection. If you speak roughly to the dog, its whole body shows that its feeling at once by its movements. We waste much energy in useless speech. In the old races we see that a motion of the hands, an inclination of the head for many things takes the place of words.