'My happiness, my abilities, and any possibility of being useful in any way have always been in the literary field. And here I have, to be sure, experienced states (not many) which in my opinion correspond to the clairvoyant states described by you, Herr Doktor, in which I completely dwelt in every idea, but also filled every idea, and in which I not only felt myself at my boundary, but at the boundary of the human in general.'
FK, 1911