Abstract
In this paper I adopt Aquinas' explanation of passivity and activity by means of acts remaining in the agent and acts passing over into external matter. I use it to propose a divide between immanent-type and transcendent-type acts. I then touch upon a grammatical distinction between three kinds of verbs. To argue for the activity and passivity of affectivity I refer to the group that includes acts of transcendent-type and whose verbs in both voices possess affective meaning. In the end I focus on cases in which an act of affective f-ing is mirrored in its object as being affectively f-ed.