“The essence of a free government consists in an effectual control of rivalries.”
No. 13
1790s, Discourses on Davila (1790)
Context: Property must be secured, or liberty cannot exist. But if unlimited or unbalanced power of disposing property, be put into the hands of those who have no property, France will find, as we have found, the lamb committed to the custody of the wolf. In such a case, all the pathetic exhortations and addresses of the national assembly to the people, to respect property, will be regarded no more than the warbles of the songsters of the forest. The great art of law-giving consists in balancing the poor against the rich in the legislature, and in constituting the legislative a perfect balance against the executive power, at the same time that no individual or party can become its rival. The essence of a free government consists in an effectual control of rivalries. The executive and the legislative powers are natural rivals; and if each has not an effectual control over the other, the weaker will ever be the lamb in the paws of the wolf. The nation which will not adopt an equilibrium of power must adopt a despotism. There is no other alternative. Rivalries must be controlled, or they will throw all things into confusion; and there is nothing but despotism or a balance of power which can control them.
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John Adams 202
2nd President of the United States 1735–1826Related quotes

The Relation of the State to the Invididual (1890)
Context: Aggression is simply another name for government. Aggression, invasion, government, are interconvertible terms. The essence of government is control, or the attempt to control. He who attempts to control another is a governor, an aggressor, an invader; and the nature of such invasion is not changed, whether it is made by one man upon another man, after the manner of the ordinary criminal, or by one man upon all other men, after the manner of an absolute monarch, or by all other men upon one man, after the manner of a modern democracy.

No. 13
1790s, Discourses on Davila (1790)
Context: Property must be secured, or liberty cannot exist. But if unlimited or unbalanced power of disposing property, be put into the hands of those who have no property, France will find, as we have found, the lamb committed to the custody of the wolf. In such a case, all the pathetic exhortations and addresses of the national assembly to the people, to respect property, will be regarded no more than the warbles of the songsters of the forest. The great art of law-giving consists in balancing the poor against the rich in the legislature, and in constituting the legislative a perfect balance against the executive power, at the same time that no individual or party can become its rival. The essence of a free government consists in an effectual control of rivalries. The executive and the legislative powers are natural rivals; and if each has not an effectual control over the other, the weaker will ever be the lamb in the paws of the wolf. The nation which will not adopt an equilibrium of power must adopt a despotism. There is no other alternative. Rivalries must be controlled, or they will throw all things into confusion; and there is nothing but despotism or a balance of power which can control them.
“The essence of happiness consists in an act of the intellect.”
(Thomas Aquinas, Summa Theologica) … What is implicit in this sentence? This is implicit: the fulfillment of existence takes place in the manner in which we become aware of reality; the whole energy of our being is ultimately directed toward attainment of insight. The perfectly happy person, the one whose thirst has been finally quenched, who has attained beatitude—this person is the one who sees. The happiness, the quenching, the perfection, consists in this seeing.
Source: Happiness and Contemplation (1958), p. 58

[199809041918.MAA06850@wall.org, 1998]
Usenet postings, 1998

“Controlling complexity is the essence of computer programming.”
Software Tools (1976), p. 319 (with P. J. Plauger).

Meet The Press interview https://www.theguardian.com/uk/2001/jul/31/race.world1, The Guardian (April 1997)