Patrick Wall, 20 May 1982
When Darwin died a hundred years ago; he could reasonably have said, ‘Après moi, le déluge,’ because we are still awash with books and ideas for, against and about him. The issue is intellectually enthralling, moves rapidly, and is of practical importance. The Monkey Puzzle is about the origin of man, and, in particular, about the date when the line which led to us separated from that which led to chimpanzees and gorillas. There is a debate in progress as to whether this separation occurred four or 20 million years ago.