Constantine Vassiliou’s ambitious book offers its readers a timely opportunity to reexamine Montesquieu’s complex ideas on finance, commerce, honor, and liberty in the context of his engagement with the ideas of the Scottish Enlightenment. It starts from the impact of the events related to John Law’s system on Montesquieu’s intellectual formation and puts his ideas in dialogue with Adam Smith, David Hume, and Adam Ferguson. Vassiliou admirably succeeds in shedding fresh light on the complexity of Montesquieu’s liberalism and invites us to rethink the importance of political moderation for addressing our contemporary economic and political challenges.