If there exists on any subject a philosophy (that is, a system of rational knowledge based on concepts), then there must also be for this philosophy a system of pure rational concepts, independent of any condition of intuition, in other words, a metaphysic. It may be asked whether metaphysical elements are required also for every practical philosophy, which is the doctrine of duties, and therefore also for Ethics.

Media	Books Paperback Book (Book with soft cover and glued back)
Released	February 18, 2008
ISBN13	9781604592573
Publishers	A & D Publishing
Pages	48
Dimensions	127 × 203 × 3 mm · 63 g
Language	English

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