These words of James Bradley Thayer may be recalled: "This rule recognizes that, having regard to the great, complex ever unfolding exigencies of government, much which will seem unconsti tutional to one man, or body of men, may reasonably not seem so to another; that the constitution often admits of different inter pretations; that there is often a range of choice and judgment; that in such cases the constitution does not impose upon the legisla ture any one specific opinion, but leaves open this range of choice; and that whatever choice is rational is constitutional." (Emphasis Supplied) [See: Supreme Court Statecraft; The Rule of Law and Men: Wallace Mendelson: p. 4. ] Thayer also referred to the words of a Chief Justice of Pennsylvania way back in 1811 which are also worth recall ing: "For weighty reasons, it has been assumed as a principle in constitutional construction by the Supreme Court of the United States, by this court, and every other court of reputa tion in the United States, that an Act of the legislature is not be declared void unless the violation of the constitutional is so manifest as to leave no room for reasonable doubt.