“The transcendental idealist may be an empirical realist or, as he is called, a dualist; that is, he may admit the existence of matter without going outside his mere self-consciousness, or assuming anything more than the certainty of his representations, that is the cogito, ergo sum. For he considers this matter and even its inner possibility to be appearance merely; and appearance, if separated from our sensibility is nothing. Matter is with him, therefore, only a species of representations (intuition), which are called external, not as standing in relation to objects in themselves external, but because they relate perceptions to the space in which all things are external to one another, while yet the space itself is in us.” – Immanuel Kant, “Critique of Pure Reason,” 1781. G.N.A. Vesey, Body and Mind, editor, George Allen and Unwin Ltd., 1964. image: Flying Golden-tailed Sapphire Hummingbird (Chrysuronia oenone) in NE Venezuela.This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.Author: Marcial4

space is the set of all points