Relativity: The Special and General Theory
The present book is intended, as far as possible, to give an exact insight into the theory of
Relativity to those readers who, from a general scientific and philosophical point of view,
are interested in the theory, but who are not conversant with the mathematical apparatus
of theoretical physics. The work presumes a standard of education corresponding to that
of a university matriculation examination, and, despite the shortness of the book, a fair
amount of patience and force of will on the part of the reader. The author has spared
himself no pains in his endeavour to present the main ideas in the simplest and most
intelligible form, and on the whole, in the sequence and connection in which they actually
originated. In the interest of clearness, it appeared to me inevitable that I should repeat
myself frequently, without paying the slightest attention to the elegance of the
presentation. I adhered scrupulously to the precept of that brilliant theoretical physicist L.
Boltzmann, according to whom matters of elegance ought to be left to the tailor and to
the cobbler. I make no pretence of having withheld from the reader difficulties which are
inherent to the subject. On the other hand, I have purposely treated the empirical physical
foundations of the theory in a "step-motherly" fashion, so that readers unfamiliar with
physics may not feel like the wanderer who was unable to see the forest for the trees.
May the book bring some one a few happy hours of suggestive thought!