Charles Darwin (1809–1882) British naturalist, author of "On the origin of species, by means of natural selection"
" Notebook C http://darwin-online.org.uk/EditorialIntroductions/vanWyhe_notebooks.html" (1838) page 210e http://darwin-online.org.uk/content/frameset?pageseq=186&itemID=CUL-DAR122.-&viewtype=side<br>quoted in<br>also quoted in <br class="br">Other letters, notebooks, journal articles, recollected statements