I. Natural Science and Its Boundaries

Many years ago I made an attempt to formulate what may be called a science of the human senses. In spoken lectures I did to some extent succeed in putting this science of the twelve senses into words, because there it is more possible to manipulate the language and ensure understanding by means of repetitions, so that the deficiency of our language—which is not yet equal to expressing these super-sensible things—is not so strongly felt. But strangely enough, when I wanted many years ago to write down what I had given in lectures as pure Anthroposophy in order to put it into a form suitable for a book, the outer experiences, on being interiorised became so delicate and sensitive that language simply failed to provide the words, and I believe the beginning of the text—several sheets of print—lay for some five or six years at the printer's. It was because I wanted to write the whole book in the style in which it began that I could not continue writing, for the simple reason that at the stage of development 1 had then reached, language refused to furnish the means for what I wished to achieve. Then came an overload of work, and I have still not been able to finish the book.