Galton did not oppose nature to nurture as two alternatives. The phrase 'nature vs nurture' has been criticized for its over-simplification. Almost all writers have realised that both play a part in our make-up. One who, at first sight, seemed to think humans got their 'mind' from nurture (the "tabula rasa" or blank slate theory) was philosopher John Locke. He, however, was only concerned with how we acquire knowledge from sense data.