As inability to see the physiological effect upon himself encourages the tobacco user to continue smoking or chewing, so failure to identify evil physiological effects upon the smoker encourages the Nonuser to begin smoking or chewing.
"Civics and Health"
William H. Allen
If the errors of some have long been tolerated, what right of the critic has been lost by Nonuser?
"The Grammar of English Grammars"
Goold Brown