The judicial power ought to be distinct from both the legislative and executive, and independent upon both, that so it may be a check upon both, as both should be checks upon that.
John Adams
In this distinct and separate existence of the judicial power, in a peculiar body of men, nominated indeed, but not removable at pleasure, by the crown, consists one main preservative of the public liberty; which cannot subsist long in any state, unless the administration of common justice be in some degree separated both from the legislative and the also from the executive power. Were it joined with the legislative, the life, liberty, and property of the subject would be in the hands of arbitrary judges, whose decisions would be then regulated only by their own opinions, and not by any fundamental principles of law; which, though legislators may depart from, yet judges are bound to observe. Were it joined with the executive, this union might soon be an overbalance for the legislative. For which reason... effectual care is taken to remove all judicial power out of the hands of the king's privy council; who, as then was evident from recent instances might soon be inclined to pronounce that for law, which was most agreeable to the prince or his officers. Nothing therefore is to be more avoided, in a free constitution, than uniting the provinces of a judge and a minister of state.
William Blackstone
On the level of political principle, the imposition of taxes and the expenditure of tax proceeds are governmental functions. We have established elaborate constitutional, parliamentary and judicial provisions to control these functions, to assure that taxes are imposed so far as possible in accordance with the preferences and desires of the public — after all, "taxation without representation" was one of the battle cries of the American Revolution. We have a system of checks and balances to separate the legislative function of imposing taxes and enacting expenditures from the executive function of collecting taxes and administering expenditure programs and from the judicial function of mediating disputes and interpreting the law.
Here the businessman — self-selected or appointed directly or indirectly by stockholders — is to be simultaneously legislator, executive and, jurist. He is to decide whom to tax by how much and for what purpose, and he is to spend the proceeds — all this guided only by general exhortations from on high to restrain inflation, improve the environment, fight poverty and so on and on.Milton Friedman
Finally, it would be a masterstroke if those great powers honestly bent on peace would form a League of Peace, not only to keep the peace among themselves, but to prevent, by force if necessary, its being broken by others. The supreme difficulty in connection with developing the peace work of The Hague arises from the lack of any executive power, of any police power to enforce the decrees of the court. In any community of any size the authority of the courts rests upon actual or potential force: on the existence of a police, or on the knowledge that the able-bodied men of the country are both ready and willing to see that the decrees of judicial and legislative bodies are put into effect.
Theodore Roosevelt
But on what basis should the three branches of government be divided? It came down to two dueling ideas: Madison's proposal of an executive, judicial and legislative branch, and Georgia's Joseph Morton's proposal to dole out power according to, "The presence, forbearance, rectictude and largeosity of one's 'Plums and Carrot'." After much deliberation, it was decided Madison's proposal would be accepted, Morton only relenting after the Constitutional Convention agreed to proclaim him "impressive."
Jon Stewart
I think [that] '[t]he judicial Power of the United States' conferred upon this Court 'and such inferior courts as Congress may establish', must be deemed to be the judicial power as understood by our common-law tradition. That is the power 'to say what the law is', Marbury v. Madison, 1 Cranch 137, 177 (1803), not the power to change it.
Antonin Scalia
Adams, John
Adams, John Bodkin
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