Common sense is only a modification of talent. Genius is an exaltation of it. The difference is, therefore, in degree, not nature. – Edward George Bulwer-Lytton
Allow the president to invade a neighboring nation, whenever he shall deem it necessary to repel an invasion, and you allow him to do so whenever he may choose to say he deems it necessary for such a purpose – and you allow him to make war at pleasure. – Abraham Lincoln