This paper is a collection of original source material for the use of all scholars interested in understanding Ernst Mach's life as an aid to comprehending his unique and controversial impact on the development of modern physics and both the history and philosophy of science. The documents are complete; and to encourage points of view other than my own, I have listed a number of very recent articles in my footnotes which reflect a wide spectrum of opinion on Ernst Mach (...) and the singular nature of his ideas. (shrink)

The primary purpose of the paper is to try to prove that it is impossible to write or understand history without making epistemological and ontological assumptions, In particular assumptions about whether physical objects and processes are within or beyond the limits of what can be made empirical or conscious.

The distinction between science and metaphysics tends to be invidious and is often used to set up a prejudice against foundation theory in general and indirect realism in particular. It should probably be replaced by distinctions between idealized and non-Idealized science on the one side and direct and indirect foundation theory on the other.