... The glory and ornament of our system which distinguishes it from every other government on the face of the earth is that there is a great and mighty power hovering over the Constitution of the land to which has been delegated the awful responsibility of restraining all the coordinate departments of government within the walls of the governmental fabric which our fathers built for our protection and immunity.[1] At other times the subject has been dealt with less enthusiastically, even skeptically. One obstacle that the theory encountered very early was the refusal of certain Presidents to regard the Constitution as primarily a source of rules for judicial decision. It was rather, they urged, a broadly discretionary mandate to themselves and to Congress. And pursuing the logic of this position, they contended that while the Court was undoubtedly entitled to read the Constitution independently for the purpose of deciding cases, this very purpose automatically limited the authoritativeness of its readings; and that within their respective jurisdictions President and Congress enjoyed the same correlative independence as the Court did within its jurisdiction. This was, in effect, the position earlier of Jefferson and Jackson, later of Lincoln, and in recent times that of the two Roosevelts. Another obstacle has been of the Court's own making. Whether because of the difficulty of amending the Constitution or for cautionary reasons, the Court took the position, as early as 1851, that it would reverse previous decisions on constitutional issues when convinced they were erroneous.[2] An outstanding instance of this nature was the decision in the Legal Tender cases, in 1871, reversing the decision which had been rendered in Hepburn _v._ Griswold fifteen months earlier;[3] and no less shattering to the prestige of _stare decisis_ in the constitutional field was the Income Tax decision of 1895,[4] in which the Court accepted Mr. Joseph Choate's invitation to "correct a century of error". The "constitutional revolution" of 1937 produced numerous reversals of earlier precedents on the ground of "error", some of them, the late Mr. James M. Beck complained, without "the obsequious respect of a funeral oration".[5] In 1944 Justice Reed cited fourteen cases decided between March 27, 1937 and June 14, 1943 in which one or more prior constitutional decisions were overturned.[6] On the same occasion Justice Roberts expressed the opinion that adjudications of the Court were rapidly gravitating "into the same class as a restricted railroad ticket, good for this day and train only".[7] Years ago the eminent historian of the Supreme Court, Mr. Charles Warren, had written: However the Court may interpret the provisions of the Constitution, it is still the Constitution which is the law and not the decision of the Court.[8]