Hold everybody accountable? Ridiculous!
You cannot inspect quality into the product; it is already there.
Knowledge is theory. We should be thankful if action of management is based on theory. Knowledge has temporal spread. Information is not knowledge. The world is drowning in information but is slow in acquisition of knowledge. There is no substitute for knowledge.
People are entitled to joy in work.
All models are wrong; some models are useful.
What makes a scientist great is the care that he takes in telling you what is wrong with his results, so that you will not misuse them.