A discussion on the book by Pierre Teilhard de Chardin, SJ, between P.B. Medawar, F.R.S., Jodrell Professor of Zoology, University of London and Bernard Towers, Lecturer in Anatomy, University of Cambridge

Teilhard's vision of man's place and future in an evolutionary universe has caught the imagination of some critics but it has infuriated others, who have complained that it is obscure and illogical. In this discussion two scientists argue out their conflicting interpretations of Teilhard's book.