“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.”

A mortal lives not through that breath that flows in and that flows out. The source of his life is another and this causes the breath to flow.

Time is a brisk wind, for each hour it brings something new… but who can understand and measure its sharp breath, its mystery and its design?

Magic has power to experience and fathom things which are inaccessible to human reason. For magic is a great secret wisdom, just as reason is a great public folly.

We do not know it because we are fooling away our time with outward and perishing things, and are asleep in regard to that which is real within ourself.

All numbers are multiples of one, all sciences converge to a common point, all wisdom comes out of one center, and the number of wisdom is one.

But is not He who created it for the sake of the sick body more than the remedy? And is not He who cures the soul, which is more than the body, greater?

If we want to make a statement about a man’s nature on the basis of his physiognomy, we must take everything into account; it is in his distress that a man is tested, for then his nature is revealed.

For it is we who must pray for our daily bread, and if He grants it to us, it is only through our labour, our skill and preparation.

That which lives on reason lives against the spirit.

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

It should be forbidden and severely punished to remove cancer by cutting, burning, cautery, and other fiendish tortures. It is from nature that the disease comes, and from nature comes the cure, not from physicians.

The physician must give heed to the region in which the patient lives, that is to say, to its type and peculiarities.

Dreams must be heeded and accepted. For a great many of them come true.

The right dose differentiates a poison from a remedy.

The art of medicine cannot be inherited, nor can it be copied from books

Medicine rests upon four pillars – philosophy, astronomy, alchemy, and ethics.