The "intelligible species" of this conception, which Bruno derives from Neoplatonism, are simply the ideas of the "speculative sciences," which include, however, what would now be called the natural sciences. Human Perfection consists in a form of knowledge, a system of thought, by which the knower becomes one with the mind in which this thought-system originated, the mind of God. Our knowledge--that is, our perfection--can never, however, be complete, since the object, the knowable, can never be perfectly comprehended. But it may be made complete so far as our vision extends; and herein lies a saving clause for the "ordinary" man. Few can reach the goal, but all may run; it is enough that each do his best possible. The generous spirit prefers to fail nobly in the pursuit of the highest rather than to succeed in inferior and baser enterprises.[503] _Acteon_ typifies the human intellect in its pursuit of the divine wisdom and capture of divine beauty.[504] The wild beasts whom he tracks down are the "intelligible species" or ideal forms, rarely sought, and rarely seen by those that seek them. His dogs are the thoughts that issue outwards in search of goodness, wisdom, beauty beyond himself. The fate of Acteon--his death under the fangs of his own hounds--represents how the generous spirit, coming into the presence of that highest beauty, is ravished out of itself, is converted into the very prey which it pursued: itself is now the prey of its own thoughts, for it has contracted divinity into itself, has no longer to seek it outside of itself: as love converts into the thing loved.[505] His death means that he ends his life according to the world of folly, of sense, of blindness and of fancy, only to commence the new intellectual life, the life of the gods.[506] [Sidenote: The infinite process.]