Faith and love are apt to be spasmodic in the best minds: Men live on the brink of mysteries and harmonies into which yet they never enter, and with their hand on the doorlatch they die outside.
Though we may never be able to comprehend human life, we know certainly that it is a movement, of whatever nature it be. The existence of movement unavoidably implies a body which is being moved and a force which is moving it. Hence, wherever there is life, there is a mass moved by a force. All mass possesses inertia; all force tends to persist