Robert H. Jackson, Railway Express Agency v. New York…
“ The courts of New York have declared that the sole nature and purpose of the regulation before us is to reduce traffic hazards. There is not even a pretense here that the traffic hazard created by the advertising which is forbidden is in any manner or degree more hazardous than that which is permitted. It is urged with considerable force that this local regulation does not comply with the equal protection clause because it applies unequally upon classes whose differentiation is in no way relevant to the objects of the regulation. ”
