Has de humoribus theses

52. Mucus is a cruder part of the nourishment of the brain, collected in its own places due to the cold intemperance of the brain or another occasion, which is finally secreted through the nostrils.

53. We have deliberately chosen to omit other differences of the humors and other things that seem to pertain to their complete doctrine. For it was not our intention to teach, but only for the sake of discussion to propose certain things that seemed capable of coming into dispute.