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.

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

All arts lie in man, though not all are apparent. Awakening brings them out. To be taught is nothing; everything is in man waiting to be awakened.

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?

All things are poisons, for there is nothing without poisonous qualities. It is only the dose which makes a thing poison.

Medicine is not merely a science but an art. The character of the physician may act more powerfully upon the patient than the drugs employed.

And it is true, best is nothing concealed which shall not be discovered; for which cause a marvellous being shall come after me, who as yet lives not, and who shall reveal many things.