Chi_Cygni said:
I knew (somewhat) Carl Sagan personally. I always found him to be a decent guy BUT I often found his scientific work to be lacking in rigour.
Sometimes. I think Sagan's main failing was extrapolating beyond science and using science illegitimately to back his personal beliefs -- his atheism in this case. Sagan had a problem presenting atheism as tho it were a direct conclusion of science. See the book
Science Held Hostage for a full critique of this. But simply Sagan's catchphrase will do: "The Cosmos [defined as the material universe] is all there is, all there was, and all there will be."
For the original poster, the problem will be to separate Sagan's faith statements from his legitimate science statements. I have found that professionals like you and I do this unconsciously. It doesn't even register that we are doing it. It's only when we consciously go back and look at things that we see Sagan's bias. Lewontin was making fun of Sagan in his review of
Demon Haunted Woodland in what has become one of the most famous of creationist misquotes:
"What seems absurd depends on ones prejudice. Carl Sagan accepts, as I do, the duality of light, which is at the same time wave and particle, but he thinks that the consubstantiality of Father, Son, and Holy Ghost puts the mystery of the Holy Trinity in deep trouble. Twos company, but threes a crowd.
Our willingness to accept scientific claims that are against common sense is the key to an understanding of the real struggle between science and the supernatural. We take the side of science in spite of the patent absurdity of some of its constructs, in spite of its failure to fulfill many of its extravagant promises of health and life, in spite of the tolerance of the scientific community for unsubstantiated just-so stories, because we have a prior commitment, a commitment to materialism. It is not that the methods and institutions of science somehow compel us to accept a material explanation of the phenomenal world, but, on the contrary, that we are forced by our a priori adherence to material causes to create an apparatus of investigation and a set of concepts that produce material explanations, no matter how counter-intuitive, no matter how mystifying to the uninitiated. Moreover, that materialism is absolute, for we cannot allow a Divine Foot in the door. The eminent Kant scholar Lewis Beck used to say that anyone who could believe in God could believe in anything. To appeal to an omnipotent deity is to allow that at any moment the regularities of nature may be ruptured, that miracles may happen. "