"We are not satisfied with what nature freely offers to the observing mind. We feel that, to produce the vast variety of her creations, nature uses driving forces that she initially conceals from the observer. Nature herself does not speak her final word. Our experience reveals what nature can create but not how that creation takes place. The means for unveiling the driving forces of nature exist in the human mind itself. It is here that ideas arise that throw light on the way nature brings forth her creations. What the phenomena of the external world conceal manifests within the human being. What we think through as natural laws is not invented as an addition to nature; it is nature’s own inner constitution. The mind is simply the theater in which nature allows the secrets of her creativity to manifest. What we observe is only one aspect of things. The other is what then wells up within our minds. The same things speak to us from outside and from within us. We realize the complete reality only when we join the language of the outer world with that of our inner being. True philosophers throughout time have desired nothing but to proclaim the essential nature of things—what those new things themselves express when the mind is offered as their organ of communication. "
- Rudolf Steiner (1861 - 1925)