Karl Sigmund

“Morality, Schlick was convinced, is not tied to self-denial: “It does not come dressed in a nun’s habit.” Quite the contrary: “Moral behavior springs from pleasure and pain; if one acts nobly, it is because one enjoys doing so…. Values are not dictated from above, but lie within; it is human nature to be good.”
― Karl Sigmund, Exact Thinking in Demented Times: The Vienna Circle and the Epic Quest for the Foundations of Science

“This term serves to contrast our worldview with philosophy in its usual sense, as a doctrine about the world that claims to stand side by side with the scientific disciplines, or possibly even above them. In our opinion, anything that can be sensibly said at all is a proposition of science, and doing philosophy just means examining critically the propositions of science to check whether they are or are not pseudo-propositions (that is, whether they really have the clarity and significance ascribed to them by the practitioners of the science in question); and it means, further, exposing as pseudo-propositions those propositions that lay claim to another type, and a higher degree, of significance than the propositions of science.”
― Karl Sigmund, Exact Thinking in Demented Times: The Vienna Circle and the Epic Quest for the Foundations of Science