Paracelsus

The universities do not teach all things, so a doctor must seek out old wives, gipsies, sorcerers, wandering tribes, old robbers, and such outlaws and take lessons from them. He who is born in imagination discovers the latent forces of Nature. . . . Besides the stars that are established, there is yet another -- Imagination -- that begets a new star and a new heaven. The human spirit is so great a thing that no man can express it; could we rightly comprehend the mind of man nothing would be impossible to us upon the earth. Man is a microcosm, or a little world, because he is an extract from all the stars and planets of the whole firmament, from the earth and the elements; and so he is their quintessence. The realms of nature are the letters, and man is the word that is composed of these letters. That which the dream shows is the shadow of such wisdom as exists in man, even if during his waking state he may know nothing about it... 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 ourselves. Thoughts are free and are subject to no rule. On them rests the freedom of man, and they tower above the light of nature. Thoughts give birth to a creative force that is neither elemental nor sidereal. Thoughts create a new heaven, a new firmament, a new source of energy, from which new arts flow. When a man undertakes to create something, he establishes a new heaven, as it were and from it the work that he desires to create flows into him. For such is the immensity of man that he is greater than heaven and earth.