Effort and Weariness

Ludger Jansen

Philosophers standardly discuss so-called surefire dispositions, i.e. dispositions that are invariably manifested given specific triggering conditions. Real life examples seem to be more complicated: Dispositions can be acquired and lost, manifestations may involve effort (or not) or weariness (or not). The paper discusses some ways to account for the logic and ontology of such more complex phenomena.