The change does not mean that nature has lost intelligi- bility. It rather signifies that we are in position to realize that the term intelligible is to be understood literally. It expresses apotentiality rather than an actuality. Nature is capable of being understood. But the possibility is realized not by amind thinking about it from without but by operations conducted from within, operations which give it new relations summed up in production of anew individual object. Nature has intel- ligible order as its possession in the degree in which we by our own overt operations realize potentialities contained in it. The change from intrinsic rationality in the traditional sense to an intelligibility to be realized by human action places responsibility upon human beings. The devotion we show to the ideal of intelligence determines the extent in which the actual order of nature is congenial to mind.