Conversion and zealotry, just like revelation and apostasy, are flip sides of the same coin, the currency of a political culture having more in common with religion than rational discourse.

In this quote, Norman Finkelstein is making a thought-provoking comparison between conversion and zealotry on one hand, and revelation and apostasy on the other. Finkelstein argues that these phenomena—often seen as religious or ideological shifts—are essentially two sides of the same coin. Both involve intense commitment to a belief system, whether it’s the fervent adoption of a new belief (conversion) or the equally intense rejection of a former belief (apostasy). Similarly, zealotry (excessive passion or militancy for one’s beliefs) mirrors the zealous pursuit of truth or enlightenment often seen in revelation. The quote suggests that such processes are driven more by emotion, identity, and political culture than by rational discourse or thoughtful, evidence-based reasoning.

Finkelstein's statement speaks to the idea that political cultures, especially those that are ideologically polarized, often function more like religions than systems based on reason and debate. The passion and extremism often seen in political movements can resemble religious fervor, where individuals are more driven by faith in their cause than by rational, logical discourse. The quote critiques the idea of ideological purity and inflexibility, suggesting that the lines between political movements and religious movements are often blurred, with both thriving on emotion and unquestioning loyalty.

The origin of the quote likely comes from Finkelstein's broader work, particularly his critiques of political movements and the way they can resemble religious zeal in their dogma and fervor. Finkelstein, a political scientist and historian, is known for his critical analysis of ideologies and the use of ideological narratives in shaping political discourse. He has often explored how political movements—whether on the left or right—can be just as rigid and dogmatic as religious institutions, using a combination of emotion and identity to mobilize people, much like a religious conversion does.

Ultimately, Finkelstein’s quote suggests that conversion and zealotry—along with revelation and apostasy—are not purely religious phenomena but can also apply to the world of politics. He argues that these ideological shifts are fueled more by a political culture that thrives on passion and commitment rather than by reasoned, thoughtful debate. In this sense, the dynamics of belief in politics can mirror those of religious faith, with both rooted in conviction, identity, and emotion rather than a commitment to rationality or truth.