“The parties which assumed the names of liberals were, or became in due course, simple guardians of capitalism.”

Source: The Political Economy of International Relations (1987), Chapter Two, Three Ideologies Of Political Economy, p. 37

Speech to the London Liberal and Radical Union at St. James's-hall (11 January 1887), quoted in The Times (12 February 1887), p. 7.
1880s

Source: Frostbite

"Conditions of Recovery," ch. 8 of The Great Depression https://mises.org/library/great-depression-0 (Freeport, N. Y.: Books for Libraries Press, 1971; orig. 1934), pp. 193–194.
Context: It has been the object…to show that if recovery is to be maintained and future progress assured, there must be a more or less complete reversal of contemporary tendencies of governmental regulation of enterprise. The aim of governmental policy in regard to industry must be to create a field in which the forces of enterprise and the disposal of resources are once more allowed to be governed by the market.But what is this but the restoration of capitalism? And is not the restoration of capitalism the restoration of the causes of depression?If the analysis of this essay is correct, the answer is unequivocal. The conditions of recovery which have been stated do indeed involve the restoration of what has been called capitalism. But the slump was not due to these conditions. On the contrary, it was due to their negation. It was due to monetary mismanagement and State intervention operating in a milieu in which the essential strength of capitalism had already been sapped by war and by policy. Ever since the outbreak of war in 1914, the whole tendency of policy has been away from that system, which in spite of the persistence of feudal obstacles and the unprecedented multiplication of the people, produced that enormous increase of wealth per head…. Whether that increase will be resumed, or whether, after perhaps some recovery, we shall be plunged anew into depression and the chaos of planning and restrictionism—that is the issue which depends on our willingness to reverse this tendency.

Its sole business would be to see that no man should stray. It would become purely a political sect, strictly, sternly, severely, painfully orthodox, and painfully select. If that was to be its rôle it would dwindle from generation to generation and decade to decade, until it would only have representation amongst the more tenacious races, to one of which he belonged.
Speech in Oxford Town Hall (6 August 1924), quoted in The Times (7 August 1924), p. 14
Leader of the National Liberal Party

Source: Infidel (2007), Ch. 15

Source: Free to Choose (1980), Ch. 1 "The Power of the Market", page 13
Context: The key insight of Adam Smith's Wealth of Nations is misleadingly simple: if an exchange between two parties is voluntary, it will not take place unless both believe they will benefit from it. Most economic fallacies derive from the neglect of this simple insight, from the tendency to assume that there is a fixed pie, that one party can gain only at the expense of another.

Late 1910s, quoted in E. H. H. Green, The Crisis of Conservatism (London: Routledge, 1996), p. 141.
1910s

Letter to Liberal MPs in 2006 http://www.theage.com.au/news/national/pms-letter-to-mps/2006/07/31/1154198052387.html