Full context:   Four classes of explanation fall under the principle’s rubric. Hence, four classes of objects occur always and already only in relation to a known subject, according to a correlative capacity within the subject. These classes are summarized as follows: Why does a subject act the way he does? Where a sufficient motive appears in the form either of an intuition, perception, or extracted abstract conception, the subject will act (or react) according to his character, or ‘will.’ e.g., despite all plans to the contrary. When the actual moment comes to act, we do so within the constituents of the rhetorical situation (the various representations presented within subjective experiences) and may be often surprised by what we actually say and do. The human sciences find their ground in this aspect of the principle.