Lesson · 4 min Gentle
Tolerance
In one line You may call a view false without crushing the person who holds it.
Voltaire wrote for Jean Calas, a man executed while a rumor and a creed were treated as proof. You can reject a view and still refuse to crush the person who holds it. Error is common. The civic reply to a belief you think is false is an argument, not a punishment.
Tolerance is not agreement. Calling a doctrine false is allowed. What is not allowed is dressing cruelty up as the defense of truth, then treating the person as the error.
Keep the belief and the harm apart. Stopping someone who is hurting people is still in bounds. Punishing them because you dislike the creed, when you have not shown the creed is the harm, is the thing this lesson refuses.
The false creed
A town wants a man punished because his creed is wrong. You also think the creed is wrong. The loudest voice says a false belief is already a reason for the penalty.
Voltaire splits those. Reject the view in argument. Do not crush the person for holding it.
Try this today Next time you disagree with a belief, answer it with an argument and leave the person alone.
Cite or share this lesson
A plain reference you can paste into notes or an essay:
Quest2Reason. “Tolerance.” https://quest2reason.com/learn/lesson/tolerance. Accessed 13 November 2026.
Sources
- Stanford Encyclopedia of Philosophy, “Voltaire” — Voltaire’s case for toleration.
- Voltaire, Traité sur la tolérance (1763) — Written after the execution of Jean Calas. Error is shared, so the reply to a belief is argument, not a penalty. The French text is public domain.
- Voltaire, Dictionnaire philosophique, “Tolérance” (1764) — Tolerance as a civic habit: you may reject the doctrine and still refuse to crush the person.