No matches were found for subject:"\[Marxism\-Thaxis\] Secondly, I am _agreeing_ with Butler. My statement pronounces the same principle that she seems to make in her statement. I am agreeing with her long sentence. She seems to be describing how a structure changes \- a dialecticians response to structuralism, perhaps the first post\-structural principle. Structures change when practice based on the ideas of the structure comes into conflict with objective reality . Practice is the test of theory, a la the Second Thesis on Feuerbach. Necessity is the mother of invention. Special Contradiction between structure and event is the way that the structure can change. Structures are not self\-changing because they are formal or symbolic logics for which non\-contradiction is the first principle. It is the dialectical logic \(with first principle is contradiction , the relationship between theory and practice, practical\-critical or revolutionary activity \( see First Thesis on Feuerbach\) that changes the structure."