III. The World as Illusion

An important attempt to base his world conception on the idea that all our perceptions are merely the result of our own organization has been made by Friedrich Albert Lange (1828–73) with his History of Materialism (1864). He had the boldness and consistency of thought that does not allow itself to be blocked by any obstacle but follows its fundamental conception to its last conclusion. Lange's strength lay in a forceful character that was expressed in many directions. His was a personality able to take up many things, and he had sufficient ability to carry them out.