The growing prominence of comparative political theory has inspired extensive and fruitful methodological reflection, raising important questions about the procedures that political theorists should apply when they select texts for study, interpret their passages, and assess their arguments. But, notably, comparative political theorists have mainly rejected the comparative methods used in the subfield of comparative politics, because they argue that applying the comparative method would compromise both the interpretive and the critical projects that comparative political theory should pursue. In this article, I describe a comparative approach for the study of political ideas that offers unique insight into how the intellectual and institutional contexts that political thinkers occupy influence their ideas. By systematically describing how political thinking varies across time and over space in relation to the contexts within which political thinkers live and work, the comparative method can serve as the foundation for both deconstructive critiques, which reveal the partial interests that political ideas presented as universally advantageous actually serve, and reconstructive critiques, which identify particular thinkers or traditions of political thought that, because of the contexts in which they developed, offer compelling critical perspectives on existing political institutions.