Thus more than 2,000 years ago the doctrine of the 'survival of the fittest,' which in our day, not on the basis of vague conjecture, but of positive knowledge, has been raised to such extraordinary significance, had received at all events partial enunciation. 3〔【出典】日英対訳文・対応付けデータ(独立行政法人情報通信研究機構)〕"_BELFA03", "2541489"
The "survival of the fittest" version -- the Thomas Huxley version -- of Darwinism was a better account of economic conditions in Victorian England than it was of natural selection, as the anarchist Kropotkin showed in his book Mutual Aid, A Factor of Evolution.〔【出典】日英対訳文・対応付けデータ(独立行政法人情報通信研究機構)〕"_ABOLI1", "2463080"