“Charles Darwin, letter (1882) to William Ogle, in Francis Darwin (ed.), Life and Letters of Charles Darwin (London: John Murray, 1887), Vol. III, p. 252”
Source: Wikiquote
“Charles Darwin, letter (1882) to William Ogle, in Francis Darwin (ed.), Life and Letters of Charles Darwin (London: John Murray, 1887), Vol. III, p. 252”
Source: Wikiquote