In which he argues that the argument for liberty must at its core be one on principles and against the expediency doctrine that typically withers it away:
For in each particular instance it will be possible to promise concrete and tangible advantages as the result of the curtailment of freedom, while the benefits sacrificed will in their nature always be unknown and uncertain. If freedom were not treated as the supreme principle, the fact that the promises which a free society has to offer can always be only chances and not certainties, only opportunities and not definite gifts to particular individuals, would inevitably prove a fatal weakness and lead to its slow erosion.
