Earl W. Stevick, Adapting and Writing Language Lessons… (1971)
“ ROUTINE MANIPULATIONS It is only by constant reiteration that one can impress an alien concept upon a recalcitrant mind. Anon. Negative advertising has been with us at least since the days of 'No stoop, No Squat, No Squint,' and purveyors of $10.98 language courses have made a fortune from offering 'No Tiresome Drills!' and 'No Confusing Grammar Rules!' Whether drills are necessarily tiresome remains to be seen, but there can be little doubt that they are necessary. ”
