Observational psychology, which in the first instance records its perceptions of the general modes coming to its notice in the active consciousness, comes across all sorts of faculties, inclinations, and passions; and since, while recounting the details of this collection it cannot help recing the unity of self consciousness, it must at least go so far as to be astonished that such a contingent medley of heterogeneous beings can be together in the mind like things in a hag, more especially since they show themselves to be not dead, inert things but restless movements.