Mary Walton Professions : Inventor Born : 1827 Browse All Authors Top 3 quotes by Mary Walton Perhaps the hardest lesson of all is that there is no such thing as 'getting it right'-least of all with the promulgation of quality. Mary Walton hardest quality lessons There is no learning without mistakes Mary Walton business mistake If you are a middle manager avid to begin a quality initiative in a company ruled by an executive from the old school, look elsewhere for a job. Mary Walton avid jobs school Similar Authors Arthur P. Warner inventor Arthur Fry inventor Bill Lear inventor Itzhak Bentov inventor Dr. An Wang inventor David Dunbar Buick inventor All Authors