Abstract
To explain the causal relation between institutional rules and people’s actions and expectations, Searle relies upon his concept of the Background, the thesis that intentional states function only given a background of capacities that do not themselves consist in intentional phenomena. Any sentence, for instance, only acquires truth conditions or other conditions of satisfaction against a background of capacities, dispositions, know-how, etc. that are not themselves part of the content of the sentence. The Background also structures expectations. La Rouchefoucauld said, for instance, that few people would fall in love if they had never read about it.