The chief defect of all hitherto existing materialism - that of Feuerbach included - is that the thing [Gegenstand], reality, sensuousness is conceived only in the form of the object or of comptemplation [Anschauung], but not as human sensuous activity, practice, not subjectively. Hence it happened that the active side, in contradistinction to materialsim, was developed by idealism - but only abstractly since, of course, idealsim does not know real sensuous activity as such. Feuerbach wants sensusous objects differentiatedfrom the thoght objects, but he does not conceive human activity itself as objective [gegenstandliche] activity. Hence in the Essence of Christianity he regards the theoretical attitude as the only genuinely human attitude, while practice is conceived and fixed only in its dirty-judaical form of appearance. Hence he does not grasp the significance of 'revolutionary' or 'practical-critical' activity