Charles Birch was introduced to me in July 1979 by a mutual friend, John B. Cobb Jr., a professor of Claremont Graduate University. Not long after that introduction, the two of them co-authored The Liberation of Life: From the Cell to the Community, Cambridge University Press, 1981 (ISBN0-521-23787-4).
Charles Birch had a special love for life and people. A deep respect. He had a quick, knowing smile, like a very kind-but-wise uncle.