““My own interest in Herzen was sparked by an exception to this rule: Isaiah Berlin’s essays. These still seem to me to have best captured the distinctiveness of Herzen’s thought by identifying him as a precursor, spelling out truths too novel for most of his contemporaries to understand and far too frightening for them to accept. The present study will approach his ideas in the context of the revolution in European thinking on man’s place in nature that would culminate in Darwin’s treatise on the origin of species.””