 The concepts of drive (Trieb), happiness, sensation and will are closely interrelated in the account of agency that Feuerbach sought to develop in these last writings. Feuerbach regards sensation as the “first condition of willing” (M 366), since without sensation there is no pain or need or sense of lack against which for the will to strive to assert itself. At one point he defines happiness as the “healthy, normal” state of contentment or wellbeing experienced by an organism that is able to satisfy the needs and drives that are constitutive of its “individual, characteristic nature and life” (M 366). The drive-to-happiness is a drive toward the overcoming of a multitude of painful limitations by which the finite, corporeal subject is afflicted, which can include “political brutality and despotism” (VWR 61/50). Every particular drive is a manifestation of the drive-to-happiness, and the different individual drives are named after the different objects in which people seek their happiness (SM 70). Among the specific drives to which Feuerbach refers in his later writings are the drive-to-self-preservation, the sexual drive, the drive-to-enjoyment, the drive-to-activity and the drive-to-knowledge. Although he does not explicitly associate drives with the unconscious, Feuerbach does anticipate Nietzsche and Freud in regarding the body as the “ground” of both the will and of consciousness (SM 153), and he emphasizes that action results from the force with which a dominant drive succeeds in subduing other conflicting drives that may reassert themselves under altered circumstances (SM 91). Feuerbach also occasionally distinguishes between healthy and unhealthy drives, though he has little to say about the standard or criterion for making such a distinction.