A well-managed factory is boring. Nothing exciting happens in it because the crises have been anticipated and have been converted into routine. - Peter Drucker

The greatest wisdom not applied to action and behaviour is meaningless data

Engineers speak half–jokingly about Murphy's Law: " If anything can go wrong, it will." But complexity stands under a second law as well. Let me call it Drucker's law: "If one thing goes wrong, everything else will, and at the same time."

Without... a subconscious unity, understanding of each other's behavior is difficult to attain. ...We have all ...had experience ...where someone from a different environment, a different region of the country, a different social group, perhaps a different country, behaves contrary to what we consider normal behavior ...In international affairs we have had a grotesque and tragic example of such failure to understand, and of its dangers, in Mr. Neville Chamberlain's profound belief that Hitler must react, think, and act like a successful British businessman; and it was probably Hitler's undoing that he expected the British and Americans to react and act in the "realistic" fashion of a Nazi boss.