“Knowledge is ultimate. There can be no explanation of the ‘ Why ‘ of knowledge ; we can only describe the ‘ What ‘ of knowledge . Namely we can analyse the content and it’s internal relations , but we cannot explain why there is knowledge. Thus causal nature is a metaphysical chimera ; though there is need of metaphysics whose scope transcends the limitation to nature. The object of such a metaphysical science is not to explain knowledge , but exhibit in it’s utmost completeness our concept of reality. “

– Alfred N. Whitehead