Absolute certainty in one's position may make for compelling, impassioned arguments, but it can be a sign that even facts and reality will fall by the wayside to maintain that certainty.
- Lyle's Law of Certitude: The more certain you are that you are correct, the more imperative it is to consider that you might be wrong.
- Voltaire: Doubt is not an agreeable condition, but certainty is an absurd one.
- Robert A.Heinlein: Man is not a rational animal, he is a rationalizing animal.
Do you have any favorite quotes on certainty and/or doubt? If so, we'd love to hear them.