"Anyone may arrange his affairs so that his taxes shall be as low as possible . . . . Over and over again the Courts have said that there is nothing sinister in so arranging affairs as to keep taxes as low as possible. Everyone does it, rich and poor alike and all do right, for nobody owes any public duty to pay more than the law demands." Gregory v. Helvering 69 F.2d 809, 810 (2d Cir. 1934), aff'd, 293 U.S. 465, 55 S.Ct. 266, 79 L.Ed. 596 (1935).
"The legal right of a taxpayer to decrease the amount of what otherwise would be his taxes, or altogether avoid them, by means which the law permits, cannot be doubted." United States v. Isham, 17 Wall. 496, 506; Superior Oil Co. v. Mississippi, 280 U.S. 390, 395 , 396 S., 50 S.Ct. 169; Jones v. Helvering, 63 App.D.C. 204, 71 F.(2d) 214, 217.