“The material organism, without the vital force, is capable of no sensation, no function, no self preservation; it derives all sensation and performs all the functions of life solely by means of the immaterial being (the vital force) which animates the material organism in health and in disease.
When a person fall ill, it is only this spiritual, self-acting (automatic) vital force, everywhere present in his organism, that is primarily deranged by the dynamic influence upon it of a morbific agent inimical to life; ... It is dead, and now only subject to the power of the external physical world; it decays, and is again resolved into its chemical constituents.”
Organon of Medicine
Sapere Aude! (Dare to be wise!)