V. The World Conceptions of the Modern Age of Thought Evolution

Just as the world picture of Leibniz is one that is wholly formed out of the inner energy of the self-conscious soul, so the world picture of his contemporary John Locke (1632–1704), rests entirely on the feeling that such a productive construction out of the soul is not admissible. Locke recognizes only those parts of a world conception as justified that can be observed (experienced) and what can, on the basis of the observation, be thought about the observed objects. The soul for him is not a being that develops real experiences out of itself, but an empty slate on which the outer world writes its entries. Thus, for Locke, the human self-consciousness is a result of the experience; it is not an ego that is the cause of an experience. When a thing of the external world makes an impression on the soul, it can be said that the thing contains only extension, shape, motion in reality; through the contact with the senses, sounds, colors, warmth, etc., are produced. What thus comes into being through contact with the senses is only there as long as the senses are in touch with the things. Outside the perception there are only substances that are differently shaped and in various states of motion. Locke feels compelled to assume that, except shape and motion, nothing of what the senses perceive has anything to do with things themselves. With this assumption he makes the beginnings of a current of world conception that is unwilling to recognize the impressions of the external world experienced inwardly by man in his act of cognition, as belonging to the world “in itself.”