Dual Forms of Cognition in the Middle Ages

We should clearly realise that humanity does not only carry over theories from one epoch to the other, and that the Christian development of philosophy has produced in an extraordinarily strong way the tendency to apply the intellectual faculties merely to the world of the senses, without touching the super-sensible world. If those who were striving after knowledge had touched the super-sensible sphere with their intellectual forces, this would have been considered a sin. Such an attitude gave rise to certain habits, and these habits continued. Even if the human beings are no longer fully conscious of them, they nevertheless act under the influence of these habits. In the centuries which preceded the nineteenth century, one of these habits, that is to say, a habit which arose under the influence of Christian dogmatism, produced the tendency to use the intellectual faculties merely for an external observation through the senses. In the same way in which the universities were, generally speaking, the continuation of schools which had been founded by the Church, so the sciences which were taught at these universities in connection with a knowledge of Nature were fundamentally a continuation of what the Church acknowledged to be right in the sphere of natural science. The tendency to include in knowledge nothing but an empiricism based on the observation through the senses is, in every respect, the echo of a soul-habit which has risen out of Christian dogmatism.