 Finally, let us mention the argument that is sometimes made in the literature that SSB implies that Curie’s principle is violated because a symmetry is broken “spontaneously”, that is without the presence of any asymmetric cause. Now it is true that SSB indicates a situation where solutions exist that are not invariant under the symmetry of the law (dynamical equation) without any explicit breaking of this symmetry. But, as we have seen, the symmetry of the “cause” is not lost, it is conserved in the ensemble of the solutions (the whole  “effect”).[19]