“The truth that Dostoevsky puts in the mouth of the Grand Inquisitor is that humankind has never sought freedom, and never will. The secular religions of modern times tell us that humans yearn to be free; and it is true that they find restraint of any kind irksome. Yet it is rare that individuals value their freedom more than the comfort that comes with servility, and rarer still for whole peoples to do so.”

Osbert Sitwell (1945).

This quotation appeared in an article by Margaret Thatcher, "The Moral Foundations of Society" ( Imprimis, March 1995 https://imprimis.hillsdale.edu/the-moral-foundations-of-society/), which was an edited version of a lecture Thatcher had given at Hillsdale College in November 1994. Here is the actual passage from Thatcher's article:
<blockquote>[M]ore than they wanted freedom, the Athenians wanted security. Yet they lost everything—security, comfort, and freedom. This was because they wanted not to give to society, but for society to give to them. The freedom they were seeking was freedom from responsibility. It is no wonder, then, that they ceased to be free. In the modern world, we should recall the Athenians' dire fate whenever we confront demands for increased state paternalism.</blockquote>
The italicized passage above originated with Thatcher. In characterizing the Athenians in the article she cited Sir Edward Gibbon, but she seems to have been paraphrasing statements in "Athens' Failure," a chapter of classicist Edith Hamilton's book The Echo of Greece (1957), pp. 47–48 http://www.ergo-sum.net/books/Hamilton_EchoOfGreece_pp.47-48.jpg).
Misattributed

1980s, First term of office (1981–1985), First Inaugural address (1981)
Context: If we look to the answer as to why for so many years we achieved so much, prospered as no other people on earth, it was because here in this land we unleashed the energy and individual genius of man to a greater extent than has ever been done before. Freedom and the dignity of the individual have been more available and assured here than in any other place on earth. The price for this freedom at times has been high, but we have never been unwilling to pay the price.

Strictly Personal, ch. 31 (1941)

The Human: Truth and consequences (p. 26)
Straw Dogs: Thoughts on Humans and Other Animals (2002)

Source: Everything Belongs: The Gift of Contemplative Prayer (1999), p. 93

Part 2: Metaphysical Rebellion
The Rebel (1951)
Context: Alyosha can, in fact, treat Ivan with compassion as a "real simpleton." The latter only made aa attempt at self-control and failed. Others will appear, with more serious intentions, who, on the basis of the same despairing nihilism, will insist on ruling the world. These are the Grand Inquisitors who imprison Christ and come to tell Him that His method is not correct, that universal happiness cannot be achieved by the immediate freedom of choosing between good and evil, but by the domination and unification of the world. The first step is to conquer and rule. The kingdom of heaven will, in fact, appear on earth, but it will be ruled over by men — a mere handful to begin with, who will be the Cassars, because they were the first to understand — and later, with time, by all men. The unity of all creation will be achieved by every possible means, since everything is permitted. The Grand Inquisitor is old and tired, for the knowledge he possesses is bitter. He knows that men are lazy rather than cowardly and that they prefer peace and death to the liberty of discerning between good and evil. He has pity, a cold pity, for the silent prisoner whom history endlessly deceives. He urges him to speak, to recognize his misdeeds, and, in one sense, to approve the actions of the Inquisitors and of the Caesars. But the prisoner does not speak.

Who Ordered This Truckload of Dung (2005).