But the further point that the delight arising from aesthetic ideas must not be made dependent upon the successful attainment of determinate ends (as an art mechanically directed to results), and that, consequently, even in the case of the rationalism of the principle, an ideality of the ends and not their reality is fundamental, is brought home to us by the fact that fine art, as such, must not be regarded as a product of understanding and science, but of genius, and must, therefore, derive its rule from aesthetic ideas, which are essentially different from rational ideas of determinate ends.