It is easy enough to make up stories of how one form gave rise to another, and to find reasons why the stages should be favoured by natural selection. But such stories are not part of science, for there is no way of putting them to the test.
~ Dr Collin Patterson - Personal letter (written 10 April 1979) , Senior Palaeontologist at the British Museum of Natural History in London, to Luther D. Sunderland; as quoted in Darwin's Enigma by Luther D. Sunderland, Master Books, San Diego, USA, 1984, p. 89
