A manager of people knows that in this stable state it is distracting to tell the worker about a mistake.
W. Edwards DemingThe greatest waste โฆ is failure to use the abilities of peopleโฆto learn about their frustrations and about the contributions that they are eager to make.
W. Edwards DemingNo one can measure the loss of business that may arise from a defective item that goes out to a customer.
W. Edwards Deming