Details on dilemma, via wikipedia.
Particularly under ‘Types of dilemmas’, I immediately thought of that in terms of advice in particularly good ways of snagging player’s Beliefs.
I love the various names for types of dilemma mentioned, some of which I’d never heard before… Zugzwang, Morton’s Fork. I think it would be good homework for any GM to get a good handle on these, all the better to mess with PCs ^H^H create good story tension.