In early October of 1939, designated by the government as the year of "the duty to be healthy," Hitler authored a secret memo certifying that "Reichs… - Robert N. Proctor

Nazi philosophers also commonly expressed concerns about cruelty toward animals. In early 1933, Nazi representatives in the Prussian parliament called for legislation banning vivisection.

Neutrality and objectivity are not the same thing. Neutrality refers to whether science takes a stand; objectivity, to whether science merits claims to reliability. The two need not have anything to do with each other. Certain sciences may be completely "objective" — that is, valid — and yet designed to serve certain political interests.

The case of Otto Neurath, first author of the Vienna Circle's manifesto, is a revealing one. In the years before the First World War, the young Austrian economist became interested in eugenics, translating (with his wife, Anna Schapire-Neurath) Francis Galton's Hereditary Genius for the first time into German. His most important early work, however, was his analysis of the war economy. War economics, in his view, was a science with well-defined laws and principles which, like ballistics, are "independent of whether one is for or against the use of guns."