1944 An Essay on Man
1944 The Concept of Group and the Theory of Perception, Philosophy and Phenomenological Research, V(1), 1-36.
1956 Determinism and Indeterminism in Modern Physics, Yale University Press, translated by O. Benfrey from Determinismus und Indeterminismus in der modernen Physik 1936.
The Problem of Knowledge: Philosophy, Science, and History since Hegel
…it is always highly significant when a science, instead of directly and resolutely seeking its object, suddenly deserts this “natural” attitude for another; when it feels compelled to inquire into the nature of its object and into its own concept, and into the very possibiliity of the science itself. At such turning points in research it is clear that reflection gains a much more important role in the upbuilding of science than in more naïve periods. p. 84
Distinction between Dedekind, … and Frege, …
We need not go into the materialistic controversy here as it raged in the second half of the nineteenth century. Its origin and historical development have been exhaustively described by Friedrich Albert Lange. Most of the doctrines that he analyzed so minutely, however, have left no permanent trace in either scientific or philosophical thought. Neither the opponents nor the defenders of materialism were theoretically equipped for the battle they attempted to fight. p. 86