 Scholars have often questioned whether Hegel’s dialectical method is logical. Some of their skepticism grows out of the role that contradiction plays in his thought and argument. While many of the oppositions embedded in the dialectical development and the definitions of concepts or forms are not contradictions in the strict sense, as we saw  (section 2,  above), scholars such as Graham Priest have suggested that some of them arguably are (Priest 1989: 391). Hegel even holds, against Kant (cf.  section 3  above), that there are contradictions, not only in thought, but also in the world. Motion, for instance, Hegel says, is an “existent contradiction”. As he describes it: