Drawing on the phenomenological tradition in the philosophy of science and philosophy of nature, Patrick Heelan concludes that perception is a cognitive, world-building act, and is therefore never absolute or finished.

Contemporary philosophy is torn between a reliance on the pragmatic meanings of designated objects and a foundation based on formal theory. This book shows that philosophical knowledge, which no more has a terminal state than an infinite set has a last term, advances when the dialectical relationship between the two approaches is synthesized. The choice of designations is intimately related to theory and the form of theory is intimately related to the character of designated objects. The intimate dialectical relationship between theory and meaning is explored in detail in the area of...

Quantum mechanics has raised in an acute form three problems which go to the heart of man's relationship with nature through experimental science: (r) the public objectivity of science, that is, its value as a universal science for all investigators; (2) the empirical objectivity of scientific objects, that is, man's ability to construct a precise or causal spatio-temporal model of microscopic systems; and finally (3), the formal objectivity of science, that is, its value as an expression of what nature is independently of its being an object of human knowledge. These are three aspects of...

Patrick Aidan Heelan s The Observable offers the reader a completely articulated development of his 1965 philosophy of quantum physics, Quantum Mechanics and Objectivity. In this previously unpublished study dating back more than a half a century, Heelan brings his background as both a physicist and a philosopher to his reflections on Werner Heisenberg s physical philosophy. Including considerably broader connections to the contributions of Niels Bohr, Wolfgang Pauli, and Albert Einstein, this study also reflects Heelan s experience in Eugene Wigner s laboratory at Princeton...