3. Natural Science and Anthroposophy

At the beginning of the second half of the 19th century, Franz Brentano was completely immersed in natural science thinking, and when he first formulated his theses for his professorship in Würzburg, he included among them the main thesis that in the science of the soul no other method may be applied than that which is applied in the external sciences. In 1874, Franz Brentano published the first volume of his “Psychology on an Empirical Basis,” and he promised that when this volume of “Psychology” appeared in the spring of that year, he would deliver the second volume in the fall and, in rapid succession, the next four volumes in the following years. Franz Brentano has since died – no continuation of the first volume has appeared!