On the other hand, expressions have also been used, with hostile intention, for the conception of the universe presented in this book. Leaving out of account that those which were intended to strike and discredit the author most heavily are absurd and objectively untrue, these expressions are stamped as unworthy by the fact that they disparage a fully _independent_ search for truth; because the aggressors do not judge it on its own merits, but try to impose on others, as a judgment of these investigations, erroneous ideas about their dependence upon this or that tradition,—ideas which they have invented, or adopted from others without reason. However necessary these words are in face of the many attacks on the author, it is yet repugnant to him in this place to enter further into the matter. RUDOLF STEINER _June, 1913._ AUTHOR’S REMARKS TO FIRST EDITION In placing a book such as this in the hands of the public, the writer must calmly anticipate every kind of criticism regarding his work which is likely to arise in the present day. A reader, for instance, whose opinions are based upon the results of scientific research, after noting certain statements made here touching these things, may pronounce the following judgment: “It is astounding that such statements should be possible in our time. The most elementary conceptions of natural science are distorted in such a manner as to denote positively inconceivable ignorance of even the rudiments of science. The author uses such terms, for instance, as ‘heat’ in a way that would lead one to infer that he had let the entire wave of modern thought on the subject of physics sweep past him unperceived. Any one familiar with the mere elements of this science would show him that not even the merest dilettante could have made these statements, and they can only be dismissed as the outcome of rank ignorance.” This and many a similar verdict might be pronounced, and we can picture our reader, after the perusal of a page or two, laying the book aside,—smiling or indignant, according to his temperament,—and reflecting on the singular growths which a perverse tendency of thought may put forth in our time. So thinking, he will lay this volume aside, with his collection of similar freaks of the brain. What, however, would the author say should such opinions come to his knowledge? Would he not, from his point of view, also set the critic down as incapable of judgment or, at least, as one who has not chosen to bring his good will to bear in forming an intelligent opinion? To this the answer is most emphatically—No! In no sense whatever does the author feel this, for he can easily conceive of his critic as being not only a highly intelligent man, but also a trained scientist, and one whose opinions are the result of conscientious thought. The author of this book is able to enter into the feelings of such a person and to understand the reasons which have led him to form these conclusions.