The President can exercise no power which cannot be fairly and reasonably traced to some specific grant of power in the Federal Constitution or in an act of Congress passed in pursuance thereof. There is no undefined residuum of power which he can exercise because it seems to him to be in the public interest.
Interpretation
The President's powers are limited to those explicitly granted by the Constitution or Congress.
This quote by William Howard Taft emphasizes the principle of limited government powers, underscoring that the President cannot act beyond the authority explicitly granted by the Constitution or Congressional acts. It serves as a reminder that authority in governance is derived from the foundational legal documents and not from subjective interpretations of what might be deemed in the public's interest.
In practice
During a lecture on constitutional law, one might reference this quote to illustrate the limits of presidential powers.
The secret of Masonry, like the secret of life, can be known only by those who seek it, serve it, live it. It cannot be uttered; it can only be felt and acted. It is, in fact, an open secret, and each man knows it according to his quest and capacity. Like all things worth knowing, no one can know it for another and no man can know it alone.
The intoxication of power rapidly sobers off in the knowledge of its restrictions and under the prompt reminder of an ever-present and not always considerate press, as well as the kindly suggestions that not infrequently come from Congress.
We must dare to be great; and we must realize that greatness is the fruit of toil and sacrifice and high courage.
I think his greatest fault is his failure to accord credit to anyone for what he may have done. This is a great weakness in any man.
There is nothing so despicable as a secret society that is based upon religious prejudice and that will attempt to defeat a man because of his religious beliefs. Such a society is like a cockroach - it thrives in the dark. So do those who combine for such an end.
As a people, we have the problem of making our forests outlast this generation, or iron outlast this century, and our coal the next; not merely as a matter of convenience or comfort, but as a matter of stern necessity.
The world will not accept dictatorship or domination.
The invisible government tends to be concentrated in the hands of the few because of the expense of manipulating the social machinery which controls the opinions and habits of the masses. To advertise on a scale which will reach fifty million persons is expensive. To reach and persuade the group leaders who dictate the public's thoughts and actions is likewise expensive.
Like a cyclone, imperialism spins across the globe; militarism crushes peoples and sucks their blood like a vampire.
We may be assured by past experience, that such a practice [as some states charging high taxes on goods from other states] would be introduced by future contrivances; and both by that and a common knowledge of human affairs, that it would nourish unceasing animosities, and not improbably terminate in serious interruptions of the public tranquility.
American fascism will not be really dangerous until there is a purposeful coalition among the cartelists, the deliberate poisoners of public information, and those who stand for the K.K.K. type of demagoguery.
Brexit is the other face of the refugee crisis - tensions that lead to stasis, external risks that lead to asymmetric shocks.
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