“Empiricism and positivism share the common view that scientific knowledge should in some way be derived from the facts arrived at by observation.”
Source: What Is This Thing Called Science? (Third Edition; 1999), Chapter 1, Science as knowledge derived form the facts of experience, p. 3.
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Alan Chalmers 17
Australian philosopher of science 1939Related quotes

King v. Burdett (1820), 1 St. Tr. (N. S.) 140.

Letter to (Sept. 18, 1861) in Life of Henry Fawcett (1885) pp. 100-101 https://books.google.com/books?id=RjI7AAAAYAAJ&pg=PA100, and in More Letters of Charles Darwin: a Record of his Work in a Series of hitherto Unpublished Letters (1903) Vol. 1, p. 195 https://books.google.com/books?id=j0QeAQAAMAAJ&pg=PA195, ed., Sir Francis Darwin, Albert Charles Seward.
Other letters, notebooks, journal articles, recollected statements
Context: About thirty years ago there was much talk that geologists ought only to observe and not theorise; and I well remember some one saying that at this rate a man might as well go into a gravel-pit and count the pebbles and describe the colours. How odd it is that anyone should not see that all observation must be for or against some view if it is to be of any service!

Source: The Principles of Science: A Treatise on Logic and Scientific Method (1874) Vol. 1, p. 14
Source: Social Amnesia: A Critique of Conformist Psychology from Adler to Laing (1975), pp. 6-7
Source: Outsiders: Studies in the Sociology of Deviance (1963), p. 4.

Dr. Paris, Life of Sir Humphry Davy (1831)