The Importance of Self-Motivation

One part of a line will move being immovable but the other will be moved by it. A b which moves itself should consist from that which is immovable but moves and besides this from that which does not move out of necessity. It is evident that the whole will self-motiv not because some part of it is such as to move itself, but for its own sake. The parts would move themselves accidentally hence if they do not move themselves necessarily let it be assumed that they are not moved by themselves of the whole.