%0 Journal Article %A Gattei, Stefano %D 2002 %F eprints:70 %I Blackwell Publishing Ltd %J Cladistics %N 4 %P 446-452 %T The Positive Power of Negative Thinking %U http://eprints.imtlucca.it/70/ %V 18 %X Book reviewed in this article:Science and Scepticism. By John W.N. Watkins.