“Our legislators are not sufficiently apprized of the rightful limits of their power; that their true office is to declare and enforce only our natural rights and duties, and to take none of them from us.”

State of the Union Address (12 January 1977) http://www.ford.utexas.edu/library/speeches/761057.htm
1970s
Context: The exclusive right to declare war, the duty to advise and consent on the part of the Senate, the power of the purse on the part of the House are ample authority for the legislative branch and should be jealously guarded. But because we may have been too careless of these powers in the past does not justify congressional intrusion into, or obstruction of, the proper exercise of Presidential responsibilities now or in the future. There can be only one Commander in Chief. In these times crises cannot be managed and wars cannot be waged by committee, nor can peace be pursued solely by parliamentary debate. To the ears of the world, the President speaks for the Nation. While he is, of course, ultimately accountable to the Congress, the courts, and the people, he and his emissaries must not be handicapped in advance in their relations with foreign governments as has sometimes happened in the past.

Carrie Lam (2018) cited in " Macau to form national security commission chaired by city’s leader as a ‘preventative measure’ https://www.hongkongfp.com/2018/08/28/macau-form-national-security-commission-chaired-citys-leader-preventative-measure/" on Hong Kong Free Press, 28 August 2018

Letter to Robert Applegarth (3 December 1869)
Source: The Abolition of Landed Property http://www.marxists.org/archive/marx/works/1869/12/03.htm (3 December 1869)

1910s, The New Nationalism (1910)
Context: Conservation means development as much as it does protection. I recognize the right and duty of this generation to develop and use the natural resources of our land; but I do not recognize the right to waste them, or to rob, by wasteful use, the generations that come after us. I ask nothing of the nation except that it so behave as each farmer here behaves with reference to his own children. That farmer is a poor creature who skins the land and leaves it worthless to his children. The farmer is a good farmer who, having enabled the land to support himself and to provide for the education of his children, leaves it to them a little better than he found it himself. I believe the same thing of a nation.

Letter to his daughter Sarah Mason McCarty after the death of an infant daughter (10 February 1785), published in The Life of George Mason, 1725-1792 Vol. 2 (1892) by Kate Mason Rowland, p. 74

De Re Publica [Of The Republic], Book III Section 22; as translated by Francis Barham
Variant translations:
True law is right reason in agreement with nature; it is of universal application, unchanging and everlasting; it summons to duty by its commands, and averts from wrongdoing by its prohibitions. And it does not lay its commands or prohibitions upon good men in vain, though neither have any effect on the wicked. It is a sin to try to alter this law, nor is it allowable to attempt to repeal any part of it, and it is impossible to abolish it entirely. We cannot be freed from its obligations by senate or people, and we need not look outside ourselves for an expounder or interpreter of it. And there will not be different laws at Rome and at Athens, or different laws now and in the future, but one eternal and unchangeable law will be valid for all nations and all times, and there will be one master and ruler, that is, God, over us all, for he is the author of this law, its promulgator, and its enforcing judge. Whoever is disobedient is fleeing from himself and denying his human nature, and by reason of this very fact he will suffer the worst penalties, even if he escapes what is commonly considered punishment.
As translated by Clinton W. Keyes (1928)<!-- ; in De Re Publica, De Legibus (1943), p. 211 -->
Context: There is a true law, a right reason, conformable to nature, universal, unchangeable, eternal, whose commands urge us to duty, and whose prohibitions restrain us from evil. Whether it enjoins or forbids, the good respect its injunctions, and the wicked treat them with indifference. This law cannot be contradicted by any other law, and is not liable either to derogation or abrogation. Neither the senate nor the people can give us any dispensation for not obeying this universal law of justice. It needs no other expositor and interpreter than our own conscience. It is not one thing at Rome and another at Athens; one thing to–day and another to–morrow; but in all times and nations this universal law must for ever reign, eternal and imperishable. It is the sovereign master and emperor of all beings. God himself is its author,—its promulgator,—its enforcer. He who obeys it not, flies from himself, and does violence to the very nature of man. For his crime he must endure the severest penalties hereafter, even if he avoid the usual misfortunes of the present life.

Source: A Discourse on the Love of Our Country (1789), p. 34

“Conned About Marriage, Constitution and States’ Rights” http://www.wnd.com/2014/01/conned-about-marriage-constitution-and-states-rights, WorldNetDaily.com, January 23, 2014.
2010s, 2014

At an event in Araçatuba on 23 August 2018. Bolsonaro diz que se eleito 'bandidagem vai morrer' porque União não repassará recursos para direitos humanos https://g1.globo.com/sp/sao-jose-do-rio-preto-aracatuba/noticia/2018/08/23/bolsonaro-diz-que-bandidagem-vai-morrer-em-seu-governo-porque-uniao-nao-repassara-recursos-para-direitos-humanos.ghtml. G1 (23 August 2018).