There is no learning without mistakes Mary Walton More Quotes by Mary Walton More Quotes From 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 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