Certainty is the great enemy of unity. Certainty is the deadly enemy of tolerance.” — Cardinal Thomas Lawrence

The 2024 film Conclave, directed by Edward Berger and based on Robert Harris’s novel, is rich with thought-provoking dialogue that delves into themes of faith, doubt, and the complexities of church politics. Among its many memorable lines, one stands out for its profound reflection on the nature of belief:

“Certainty is the great enemy of unity. Certainty is the deadly enemy of tolerance.”

— Cardinal Thomas Lawrence 

This quote encapsulates the film’s exploration of the tension between unwavering conviction and the need for openness within religious institutions. Delivered by Ralph Fiennes’s character, Cardinal Lawrence, it underscores the dangers of absolute certainty and the importance of humility and doubt in fostering unity and tolerance.

For those interested in experiencing this moment firsthand, you can watch Ralph Fiennes deliver this impactful speech in the film:

This scene is a testament to the film’s powerful writing and Fiennes’s compelling performance, offering a deep insight into the challenges faced by those within the highest echelons of the Church.