It is not enough that top ...

It is not enough that top management commit themselves for life to quality and productivity. They must know what it is that they are committed to - that is, what they must do. These obligations cannot be delegated. Support is not enough; action is required.
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 W. Edwards Deming

Quotes from the same author

People are born with intrinsic motivation, self-esteem, dignity, curiosity to learn, joy in learning.
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 W. Edwards Deming
Monetary rewards are not a substitute for intrinsic motivation.
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 W. Edwards Deming
Our prevailing system of management has destroyed our people. People are born with intrinsic motivation, self-respect, dignity, curiosity to learn, joy in learning. The forces of destruction begin with toddlers - a prize for the best Halloween costume, grades in school, gold stars - and on up through the university. On the job people, teams, and divisions are ranked, reward for the top, punishment for the bottom. Management by Objectives, quotas, incentive pay, business plans, put together separately, division by division, cause further loss, unknown and unknowable.
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 W. Edwards Deming
The greatest waste … is failure to use the abilities of people…to learn about their frustrations and about the contributions that they are eager to make.
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 W. Edwards Deming
He that expects to quantify in dollars the gains that will accrue to a company year by year for a program for improvement of quality expounded in [Out of the Crisis] will suffer delusion. He should know before he starts that he will be able to quantify only a trivial part of the gain.
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 W. Edwards Deming