Hume contended that reason has no motive force. It is powerless without the activation and orienting of affect. Sympathy and passion are creative powers inventive of life tendencies and potentials. Hume, however, confines affect to the pain/pleasure duality. Here, a logic of experiential intensity is developed as an alternative. The focus is on the role of the other as catalyst for the inventive power of affect. At work is sympathy that does not reside in the subject but rather constitutes it in the complex back-and-forth between the infra- and transindividual levels of the relational field. Event-based outbreaks of action beyond...