The universities do not teach all things ... so a doctor must seek out old wives, gypsies, sorcerers, wandering tribes, old robbers, and such outlaws and take lessons from them. A doctor must be a traveller . . . Knowledge is experience.

The highest degree of a medicine is Love.

There is an earthly sun, which is the cause of all heat, and all who are able to see may see the sun; and those who are blind and cannot see him may feel his heat. There is an Eternal Sun, which is the source of all wisdom, and those whose spiritual senses have awakened to life will see that sun and be conscious of His existence; but those who have not attained spiritual consciousness may yet feel His power by an inner faculty which is called Intuition.

Nature also forges man, now a gold man, now a silver man, now a fig man, now a bean man.

Once a disease has entered the body, all parts which are healthy must fight it: not one alone, but all. Because a disease might mean their common death. Nature knows this; and Nature attacks the disease with whatever help she can muster.

Determined will is the beginning of all magical operations. It is because men do not perfectly imagine and believe the result, that the (occult) arts are so uncertain, while they might be perfectly certain.

Nature is a light, and by looking at Nature in her own light we will understand her. Visible Nature may be seen in her visible light; invisible Nature may become visible if we acquire the power to perceive her invisible light.