It may seem immodest to have "challenging" in the title, but I have been accurate, painfully accurate in my criticism of our discipline, regardless how it is named, either geography or cartography or GIScience. * Not Gaussian, but Paretian thinking * Not only Tobler’s law, but also scaling law * Not Euclidean geometric, but fractal or living geometric thinking * Not only data quality, but also data character * Not only topology of geometric primitives, but also topology of meaningful geographic features * Not bigness about big data, but the three characteristics * Not mechanistic, but organic thinking.