The main question with which the Critique of Judgement is concerned is, of course, the question as to the purposiveness, the _Zweckmässigkeit_, exhibited by nature. That nature appears to be full of purpose is mere matter of fact. It displays purposiveness in respect of our faculties of cognition, in those of its phenomena which we designate beautiful. And also in its organic products we observe methods of operation which we can only explain by describing them as processes in which means are used to accomplish certain ends, as processes that are _purposive_. In our observation of natural phenomena, as Kuno Fischer puts it, we judge their _forms_ aesthetically, and their _life_ teleologically. As regards the first kind of _Zweckmässigkeit_, that which is _ohne Zweck_--the purposiveness of a beautiful object which does not seem to be directed to any external end--there are two ways in which we may account for it. We may either say that it was actually designed to be beautiful by the Supreme Force behind Nature, or we may say that purposiveness is not really resident in nature, but that our perception of it is due to the subjective needs of our judging faculty. We have to contemplate beautiful objects _as if_ they were purposive, but they may not be so in reality. And this latter idealistic doctrine is what Kant falls back upon. He appeals in support of it, to the phenomena of crystallisation (pp. 243 _sqq._), in which many very beautiful forms seem to be produced by merely mechanical processes. The beauty of a rock crystal is apparently produced without any forethought on the part of nature, and he urges that we are not justified in asserting dogmatically that any laws distinct from those of mechanism are needed to account for beauty in other cases. Mechanism can do so much; may it not do all? And he brings forward as a consideration which ought to settle the question, the fact that in judging of beauty “we invariably seek its gauge _in ourselves a priori_”; we do not learn from nature, but from ourselves, what we are to find beautiful. Mr. Kennedy in his Donnellan Lectures has here pointed out several weak spots in Kant’s armour. In the first place, the fact that we seek the gauge of beauty in our own mind “may be shown from his own definition to be a necessary result of the very nature of beauty.”[2] For Kant tells us that the aesthetical judgement about beauty always involves “a reference of the representation to the subject”; and this applies equally to judgements about the beautiful in Art and the beautiful in Nature. But no one could maintain that from this definition it follows that we are not compelled to postulate design in the mind of the artist who paints a beautiful picture. And thus as the fact that “we always seek the gauge of beauty” in ourselves does not do away with the belief in a designing mind when we are contemplating works of art, it cannot be said to exclude the belief in a Master Hand which moulded the forms of Nature.