12. Formal Logic I
The relationship between anthroposophy and philosophy has already been discussed, albeit only briefly. Today we want to talk about fairly elementary aspects of so-called formal logic. Despite the elementary nature of our deliberations today, it may not be without use to delve into a philosophical chapter between our forays into higher worlds. It is not meant that such a lecture could directly offer anything for penetrating into the higher worlds. A logical consideration can do this no more than formal logic can enrich experience in the sensory realm. For example, someone who has never seen a whale cannot be convinced that they exist. He must make the observation himself. But it is precisely the knowledge of borderline areas that will be useful to anthroposophy, just as logic was useful to scholastics. The philosophers of the Middle Ages, who today are somewhat contemptuously grouped together under the name of scholastics, did not regard logic as an end in itself either; it did not serve to learn anything substantial. The subject-matter of teaching was either the observation of the senses or revelation, which is obtained through divine grace. But although, in the opinion of the scholastics, logic was quite powerless to enrich experience, they nevertheless regarded it as an important instrument of defense. So it should be an instrument of defense for us as well.