Anyone who applies himself, from an early youth, to the practice of graphic techniques may well reach a stage at which he begins to hold as his highest ideal the complete mastery of his craft. Excellence of craftsmanship takes up all his time and so completely absorbs his thoughts that he will even make his choice of subject subordinate to his desire to explore some particular facet of technique. True enough, there is tremendous satisfaction to be derived from the acquisition of artistic skill and the achievement of a thorough understanding of the properties of the material to hand, and in learning with true purposefulness and control to use the tools which one has available - above all, one's own hands!

M.C. Escher