" As we have seen, enzymes are minute but powerful molecular machines, machines that carry out various sorts of chemistry at phenomenal speed and with extraordinary accuracy. Chapter 1 closed with a quotation from Frederick Gowland Hopkins, who suggested almost ninety years ago that it was ‘difficult to exaggerate the importance to biology, and to chemistry no less, of extended studies of enzymes and their action’. A prophetic statement indeed, but even Hopkins could not have dreamt of the sweeping impact of these amazing molecules on science, technology, medicine, and our understanding of life itself. "

― , Enzymes: A Very Short Introduction