Theses has subsequentes de artis medicae definitione & divisione Praeside Viro Clariss. D.D. Thoma Erasto, syn Theō defendere conabitur M. Theophilus Maderus, A. D. VI. Kal. Sextil. hora & loco consuetis

X.
In this place, we take Art properly as a habit of producing with true reason (6 Ethics 4). For improperly, it is accustomed to denote any discipline, whether theoretical θεωρητικὴν contemplative, practical πρακτικὴν active, or productive ποιητικὴν creative.

XI.
Galen recounts three kinds of arts that produce something (On the Best Sect to Thrasybulus): those, namely, that produce things not yet existing; those that preserve and repair things already made; and those, finally, that perform both. From these, Medicine seems to be not inappropriately classified under the third kind.

XII.
We establish the human body as the subject of the medical art, insofar as it attains a certain form through the help of the practitioner (which is the meaning of "subject" when spoken of properly in Art).

XIII.
The end in art does not differ from the form to be impressed upon the subject. And so Galen correctly posits health as the end of Medicine.

XIV.
Furthermore, in our art, as in any other, the knowledge of the subject is required (1 Ethics 13), and likewise of the end (both what it is and what can be introduced by the practitioner), from which the entire constitution of an art takes its beginning, according to Galen (On the Best Sect to Thrasybulus), and finally of the instruments by which we attain the end. For this reason, the ancients correctly assigned five parts to Medicine: physiological φυσιολογικὴν pertaining to nature, pathological παθολογικὴν pertaining to suffering, semeiotical σημειωτικὴν pertaining to signs, hygienic ὑγιεινὴν pertaining to health, and therapeutic θεραπευτικὴν pertaining to healing, satisfying the three aforementioned goals.