science is the symbolic knowledge, reached by pre-existing concepts which proceed from the fixed to the moving. A truly intuitive philosophy would bring science and metaphysics together. Modern science dates from the day when mobility was set up as an independent reality and studied as such by Galileo. But men of science have mainly fixed their attention on the concepts, the residual products of Intuition, the symbols which have lent a symbolic character to every kind of science. Metaphysicians, too, have done the same thing. Hence it was easy for Kant to show that our science is wholly relative and our metaphysics entirely artificial. For Kant, science was a universal mathematic and metaphysics a practically unaltered Platonism. The synthetic Intuition was hidden by the analysis to which it had given rise. For Kant, Intuition was infra-intellectual, but for Bergson it is supra-intellectual. Kant's great error was in concluding that it is necessary for us, in order to attain Intuition, to leave the domain of the senses and of consciousness. This was because of his views of Time and Change. If Time and Change really were what he took them to be, then Metaphysics and Intuition alike are impossible. For Bergson, however, Time and Change lead up to Intuition; indeed it is by Intuition that we come to see all things, as he expresses it, sub specie durationis. This is the primary vision which an intuitive philosophy supplies. Such a philosophy will not be merely a unification of the sciences. In an article contributed to the Revue de metaphysique et de morale in January of 1908, under the title L'Evolution de l'intelligence geometrique, we find Bergson remarking: "Nowhere have I claimed that we should replace intelligence by something else, or prefer instinct to it. I have tried to show merely that when we leave the region of physical and mathematical objects for the realm of life and consciousness, we have to depend on a certain sense of living, which has its origin in the same vital impulse that is the basis of instinct, although instinct, strictly speaking, is something quite different."