This brings me to the heart of my theorem. Ever since Hamilton’s time, it has been assumed as axiomatic, by conservative Americans, that courts whose function is to expound a written constitution can and do act as a “barrier to the encroachments and oppressions of the representative body."[33] I apprehend that courts can perform no such office and that in assuming attributes beyond the limitations of their being they, as history has abundantly proved, not only fail in their object, but shake the foundations of authority, and immolate themselves. Hitherto I have confined myself to adducing historical evidence to prove that American courts have, as a whole, been gifted with so little political sagacity that their interference with legislation, on behalf of particular suitors, has, in the end, been a danger rather than a protection to those suitors, because of the animosity which it has engendered. I shall now go further. For the sake of argument I am willing to admit that the courts, in the exercise of the dispensing prerogative, called the Police Power, have always acted wisely, so much so that every such decree which they have issued may be triumphantly defended upon economic, moral, or social grounds. Yet, assuming this to be true, though I think I have shown it to be untrue, the assumption only strengthens my contention, that our courts have ceased to be true courts, and are converted into legislative chambers, thereby promising shortly to become, if they are not already, a menace to order. I take it to be clear that the function of a legislature is to embody the will of the dominant social force, for the time being, in a political policy explained by statutes, and when that policy has reached a certain stage of development, to cause it to be digested, together with the judicial decisions relevant to it, in a code. This process of correlation is the highest triumph of the jurist, and it was by their easy supremacy in this field of thought, that Roman lawyers chiefly showed their preeminence as compared with modern lawyers. Still, while admitting this superiority, it is probably true that the Romans owed much of their success in codification to the greater permanence of the Roman legislative tenure of office, and, therefore, stability of policy,—phenomena which were both probably effects of a slower social movement among the ancients. The Romans, therefore, had less need than we of a permanent judiciary to counteract the disintegrating tendency of redundant legislation; a fortiori, of course, they had still less to isolate the judiciary from political onslaughts which might cause justice to become a series of exceptions to general principles, rather than a code of unvarying rules.
It is precisely because they are, and are intended to be, arenas of political combat, that legislatures cannot be trustworthy courts, and it was because this fact was notorious that the founders of this government tried to separate the legislative from the judicial function, and to make this separation the foundation of the new republic. They failed, as I conceive, not because they made their legislatures courts, but because, under the system they devised, their courts have become legislatures. A disease, perhaps, the more insidious of the two. Insidious because it undermines, order, while legislative murder and confiscation induce reaction.