Turning now to Leibnitz's conception of the world as a process, we see first that he supplies, in his notion of the underlying reality as force which is represented as spiritual (quelque chose d'analogique au sentiment et a Tappan), both a mechanical and a teleological explanation of its order.
Hegel gives a place in his metaphysical system to the mechanical and the teleological views; yet in his treatment of the world as an evolution the idea of end or purpose is the predominant one.
Thus, much of infection and immunity are proving to be but special cases of digestion, and teleological conceptions of protective processes are modified.
Diogenes made this conception of a vital and intelligent air the ground of a teleological view of climatic and atmospheric phenomena.
Aristotle's teleological conception of organic evolution often approaches modern mechanical conceptions.