No great movement designed to change the world can bear to be laughed at or belittled. Mockery is a rust that corrodes all it touches.

This quote by Milan Kundera explores the power of mockery and its impact on ideological movements. When he says, “No great movement designed to change the world can bear to be laughed at or belittled,” Kundera is pointing out the fragility of serious political or social agendas when exposed to humor or satire. These movements often demand reverence, and once they become the subject of ridicule, their authority and seriousness begin to erode.

The metaphor “mockery is a rust that corrodes all it touches” vividly illustrates how laughter, while seemingly harmless, can be a powerful form of resistance or dismantling. Like rust slowly disintegrating metal, satirical criticism can undermine the legitimacy and emotional intensity of grand ideas or authoritarian ideologies. Kundera is suggesting that mockery, especially when directed at dogmatic systems, has the unique ability to strip them of their intimidation and grandeur.

The origin of this quote can be traced to Kundera’s novelistic explorations, particularly in The Book of Laughter and Forgetting, where he frequently examines the tension between power and humor, memory and ideology. A Czech-born writer who lived through the rise of totalitarianism, Kundera saw firsthand how regimes thrived on control of perception—and how humor could become a subversive act against that control.

Ultimately, Kundera’s message is a reflection on the humanizing and liberating role of laughter. He warns that serious movements must be wary of mockery, not because it is wrong, but because it reveals their vulnerability. At the same time, he elevates humor as a quiet force that can challenge authority, expose pretension, and reclaim the space for freedom of thought.