Beyond the importance of his ideas I find the life of Charles Darwin fascinating because of all the innumerable opportunities for history to have turned out differently. If his father had kept Darwin off the HMS Beagle, for instance, Darwin may well have had the quiet country parsonage he longed for, finding a non-controversial refuge in changing times. History, of course, turned out quite differently, but the more I learn about Darwin’s life the more I appreciate the struggle involved in the development of evolution by natural selection.

Although Darwin unintentionally imitated some of his previous scientific subjects by eventually cementing himself at Downe as a barnacle would to a rock, his correspondence reached far and wide. This huge mass