Philosophy, Cosmology, and Religion. Lecture 1 of 10. Rudolf Steiner, Dornach, Switzerland, September 6, 1922:
As opposed to this, the attitude of the Goetheanum is one which, in the fullest sense, falls in with the present-day view of natural scientific research, and recognizes what is justified in it. On the other hand, it seeks to gain objective and accurate results on the subject of the supersensible world by means of the strictly controlled training of pure psychic vision. It counts only such results as are obtained through this vision of the soul, by which the psychic-spiritual organization is just as accurately defined as a mathematical problem. The point is that at first this organization is presented in scientifically indisputable vision. If we call it ‘the spiritual eye’, we then say: as the mathematician has his problems before him, so has the researcher into the spirit his ‘spiritual eye’. The scientific method is employed for him on that preparation which is in his ‘spiritual organs’. If his ‘science’ has its being in these organs, he can make use of them, and the supersensible world lies before him. The student of the world of the senses directs his science to outward things, to results; but the student of the spirit pursues science as a preparation of vision. And when vision begins, science must already have fulfilled its mission. If you like to call your vision ‘clairvoyance’ it is at any rate an ‘exact clairvoyance’. The science of the spirit begins where that of the senses ends. Above all, the research student of the spirit must have based his whole method of thought for the newer science on the one he applied to the world of the senses.
Knowledge and Faith become two separate kinds of experience of something which once was a unity.