There is another idea connected with balance. Life is movement, and balance is something that controls it; but perfect balance controls movement too much, bringing it to a state of inertia. For instance if the strength of the right hand were equal to the strength of the left hand, if the right leg and the left leg were equal, man would not be able to work or to walk. If each of the two eyes had the same power of sight, a person would not be able to see. Everything is controlled by balance, but too much balance destroys it; for too much balance brings stillness. It is the ordinary balance which is not complete that brings about success. Art comes also from the balance of the sense of line and color, and genius in science comes from the balance between perception and conception.