principle which he might be supposed to renounce, but this apparent discrepancy involved no contradiction. It was only a progression in thought. For, he continued, the judges who, on various previous occasions, sustained that general principle, must have reached their conclusions by the light of reason; to-day we reach a contrary conclusion, but we also do so by the light of reason; therefore, as all these decisions are guided by the light of reason they fundamentally coincide, however much superficially they may seem to differ.[36] I have never supposed that this argument carried complete conviction either to the legal profession, to the public, or to Congress. Certainly, it did not convince Mr. Justice Harlan, who failed to fathom it, and bluntly expressed his astonishment in a dissenting opinion in another cause from which I regret to say I can only quote a couple of paragraphs, although the whole deserves attentive perusal:-- "If I do not misapprehend the opinion just delivered, the Court insists that what was said in the opinion in the Standard Oil Case, was in accordance with our previous decisions in the Trans-Missouri and Joint Traffic Cases, ... if we resort to _reason_. This statement surprises me quite as much as would a statement that black was white or white was black." "But now the Court, in accordance with what it denominates the 'rule of reason,' in effect inserts in the act the word 'undue,' which means the same as 'unreasonable,' and thereby makes Congress say what it did not say.... And what, since the passage of the act, it has explicitly refused to say.... In short, the Court now, by judicial legislation, in effect, amends an Act of Congress relating to a subject over which that department of the Government has exclusive cognizance."[37]