F.A. Hayek, writing during World War II:
We have progressively abandoned that freedom in economic affairs without which personal and political freedom has never existed in the past. Although we had been warned by some of the greatest political thinkers of the nineteenth century, by Tocqueville and Lord Acton, that socialism means slavery, we have steadily moved in the direction of socialism. And now that we have seen a new form of slavery arise before our eyes, we have so completely forgotten the warning that is scarcely occurs to us that the two things may be connected.
The Road to Serfdom, Chapter One: The Abandoned Road