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Most accidents in well-designed systems involve two or more events of low probability occurring in the worst possible combination.

— Robert E. Machol Principles of Operations Research (1975)

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More quotes by Robert E. Machol

The conclusions of most good operations research studies are obvious.

Principles of Operations Research (1975)

Everyone knows what engineering is. All that's left is to define systems, and I'm not fool enough to do that.

Mathematicians are useful (1971)

If the assumptions are wrong, the conclusions aren't likely to be very good.

Principles of Operations Research (1975)

Sometimes, where a complex problem can be illuminated by many tools, one can be forgiven for applying the one he knows best.

Principles of Operations Research (1975)

There comes a time when one must stop suggesting and evaluating new solutions, and get on with the job of analyzing and implementing one pretty good solution.

Principles of Operations Research (1975)

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Quote text and notes from Wikiquote: Robert E. Machol (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.