"No matter how great the faith an angler has in a single pattern, it will naturally be difficult for him to confine himself to its exclusive use. So much of his sport depends upon its delightful uncertainty, that if he does confine himself to ther use fo the single pattern, he will, of a consequence, be dienid the pleasure of congratulating himself upon tthe acumen he has shown by the selection of the fly which is taken, after the farourite has been refused."

Lebranche quoted in JUly/Aug 2008 "American Anghler"