We must show that liberty is not merely one particular value but that it is the source and condition of most moral values. What a free society offers to the individual is much more than what he would be able to do if only he were free. We can therefore not fully appreciate the value of freedom until we know how a society of free men as a whole differs from one in which unfreedom prevails.
The Constitution of Liberty: The Definitive Edition (ed. Routledge, 2011) - ISBN: 9780415035309