… is from pages 21-22 of F.A. Hayek’s great 1973 essay “Liberalism” as this essay appears as chapter one of Essays on Liberalism and the Economy (2022), which is volume 18 (expertly edited by Paul Lewis), of The Collected Works of F.A. Hayek (footnote deleted):
Freedom under the law implies economic freedom, while economic control, as the control of the means for all purposes, makes a restriction of all freedom possible.