 We differ from animals in recognizing that humans have to be first (i.e., they have value). The laws of nature, the ‘struggle for life’ or ‘natural selection’, do not show what we have in common. Are these the only laws? Do we know whether perhaps tomorrow they will not join in the depths of oblivion the Cartesian vortices or the ‘quiddities’ of scholasticism? (1889: 222, author’s translation)