Source: Just a Theory: Exploring the Nature of Science (2005), Chapter 3, “Words Scientists Don’t Use: At Least Not the Way You Do” (pp. 51-52)
“The absence of theistic belief…”
Defining the word "atheism", in A Rationalist Encyclopedia (1950).
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Joseph McCabe 9
British writer 1867–1955Related quotes

Source: 1950s, Unpopular Essays (1950)

God, Atheism and Evidence, as Theoretical Bullshit, hosted on YouTube. (11 January 2010) http://www.youtube.com/watch?v=9stJ8h2ilZU

Tourists in Paris, from Outside: Selected Writings (1984).

“Absence of evidence is not evidence of absence.”
Martin Rees — Sagan refers to this quote in The Demon-Haunted World (1995) (see above)
Misattributed
Source: Cosmos

“Absence of evidence is not evidence of absence.”
As quoted in Project Cyclops: A Design Study of a System for Detecting Extraterrestrial Intelligent Life (1971) http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19730010095_1973010095.pdf by Bernard M. Oliver, and John Billingham, Ch. 2 : Life in the Universe, p. 3 ; this has frequently misattributed to Carl Sagan, who quoted it in some of his presentations.