ABSTRACT
In studying the explanations which children give of the movements of the heavenly bodies and the clouds, we are led to a very definite result. It is that the cause of movement is not simple, but rests on a kind of bipolarity. Every movement presupposes an internal motor force which is the moving object's own life or will power. We are thus faced with a conclusion which has been established elsewhere by different methods (R.J., Chaps. V and VI). But every movement also presupposes an external motor force which can be magical, artificialist, moral, or physical, and is generally both moral and physical. It is only in the later stages that the explanations attain to the mechanical simplicity of adult schemas.
