ENDS AND MEANS an intelligent being would have planned. But that is no reason for supposing that an intelligent being did in fact plan it. Such a relationship may equally well be the result of natural selection working blindly to produce a state of equilibrium between two.originally discordant and mutually unadapted entities. Moreover, even if the evidence for design is taken at its face value (as it was taken by Kant), there is still no reason for supposing that the designer was a single supreme being. Upon this point the arguments adduced by Hume and Kant are decisive. The ontological argument is even less convincing than the argument from design. Ansehn was decisively refuted by Aquinas and Descartes by Kant, In recent years, the verbal foundations of logic have been subjected to the most search- ing analysis, as the result of which the ontological argument seems still less satisfactory than it did even in Kant's day. The cosmological proof of the existence of God is based upon the argument that if contingent beings exist there must exist a necessary being; and that if there is an ens necessarium it must be at the same time an ens realissimum. In his earlier writings Kant produced a very elaborate speculative proof of God's existence, based upon the argu- ment that the possible presupposes the actual. Later, when he had developed his Critical Philosophy, he rejected this proof and sought to show that all the arguments for natural theology, including the cosmological, were unsound. In the course of his later refutation of the cosmological proof, Kant has to dispose of the natural theologian's argument that the existence of causally related events implies the existence of a First Cause. He does this by arguing that causality is merely a principle for ordering appearances in the sensible world, therefore cannot legitimately be used for transcending the world of sense. This argument has been revived, in a less pedantic form, by Brunschvicg in his Progris de la Conscience (ii. 778): En toute evidence, ceux- 278