Any scientific problem must be attacked by research into detail; the natural scientist did not win his victories until he left meditation on the great riddles of the world and began a careful study of special problems; our knowledge — of more general associations and of far-reaching laws — has grown out of the results of such research.

Nobel Lectures, Chemistry 1922-1941 - Nobel lecture for award received in 1929 - Fermentation of Sugars and Fermentative Enzymes (p. 144), Elsevier Publishing Company. Amsterdam, Netherlands. 1966