I wasn’t in my office on Wednesday, and thus didn’t post a maxim.

Given Dan Drezner’s recent post on prospect theory and terrorism, I thought it would be interesting to post Guicciardini’s views, in effect, on the rational-choice controversy in International Relations:

What I said earlier about princes also applies to people with whom you must deal: always keep an eye not so much on what reason dictates they ought to do, as on what you believe they will do, in view of their nature and their habits (Series C, 151)

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