A special conference took place in Bologna in spring 2011, marking the hundredth anniversary of a unique lecture Steiner delivered to a philosophically trained audience in the same city. In his key exposition, Steiner had given a concise description of the spiritual-scientific theory of knowledge as well as a brief outline of the anthroposophic path of training.In his contribution to the 2011 congress, Prokofieff tackles two principal aspects. On the one hand, he describes how Steiner s Bologna lecture contained the essential foundations for a new science of the human ego (human I ). On the other hand, Prokofieff states that Steiner was the first person to transform this theory into a practical path of knowledge, following it to its very conclusion. Thus, the words of Steiner s lecture were based entirely on personal experience. Together with a transcript of Steiner s full Bologna lecture, Prokofieff s lecture is reproduced here in an expanded version. In addition, this volume features Steiner s important summaries of essential points, in which he develops and connects some of his key thoughts with further aspects of Anthroposophy, especially in relation to their Christological foundations."