"All experience has taught us that solving a complex problem uncovers hidden assumptions and ever more knowledge, trade-offs that we didn't anticipate but which can make the difference between meeting a deadline and going into research mode for a year, etc."

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The tension of a mysterious danger is even more unbearable than danger itself. People hate the vacuum of an unknown situation. They want security. They even prefer war to the insecure expectation of a war with its threat of enemy surprise. This vague fearful expectation acts on their fantasies. They anticipate all kinds of mysterious dangers; they begin to provoke them. It is the evocation of fear and danger in order to escape the tension of insecurity.

— Joost Meerloo