Dual Forms of Cognition in the Middle Ages

It is, for instance, a fact that a thinker such as Heinrich Czolbe, and he is perhaps one of the most significant materialistic thinkers, has given a real definition of sensualism in his book, “An Outline of Sensualism”, which was published in 1855. He states that sensualism implies a cognitive striving which excludes the super-sensible from the very beginning. Czolbe's system of sensualism gives us something which seeks to explain, the world and man only with the aid of what may be obtained through sensory observation.