Management by results is confusing special causes with common causes.

No one can measure the loss of business that may arise from a defective item that goes out to a customer.

You can expect what you inspect.

Put a good person in a bad system and the bad system wins, no contest.

It is a mistake to assume that if everybody does his job, it will be all right. The whole system may be in trouble.

It is wrong to suppose that if you can’t measure it, you can’t manage it – a costly myth

You must have a supplier relationship of constant improvement.