causality attaches to it, viz. that of final causes, under which these laws (of moving forces) stand only as intermediate causes.

We could leave this question or problem quite undecided and unsolved speculatively; because if we content ourselves with speculation within the bounds of mere natural knowledge, we have enough in these maxims for the study of nature and for the tracking out of its hidden secrets, as far as human powers reach. There is then indeed a certain presentiment of our Reason or a hint as it were given us by nature, that, by means of this concept of final causes, we go beyond nature, and could unite it to the highest point in the series of causes, if we were to abandon or at least to lay aside for a time the investigation of nature (although we may not have advanced far in it), and seek