Why, self-refutation is the most wonderful thing in the world, next to irony.
Look at this post from Thinking Matters New Zealand.
First, they define what self-refutation is:
In his Introduction to Logic, Harry Gensler defines a self-refuting statement as “[A] statement that makes negative claims so sweeping that it ends up denying itself.”  In other words, it results when an argument or position is undercut by its own criteria (An example of this would be saying, “I cannot speak a word of English” in English).
Then they have a list of examples of self-refutation. Here are some:
- Truth does not exist (Is that a true statement?)
- Nothing is absolute (Is that absolutely true?)
- I do not exist (You must exist to deny that you exist)
- Science is the only way to know (Can you scientifically prove that?)
- Only what can be perceived by the five senses exists (Can you prove that by the five senses?)
I work in the software engineering industry, so we have a lot of nerds running around who believe all kinds of crazy things that are self-refuting. There is a lot of skepticism of the laws of logic and analytical philosophy. A self-refuting statement that I hear a lot is: “Don’t judge me, because it’s wrong to judge other people”. And I just ask them: “Well if it’s wrong to judge other people, then why are you judging me?”. (Actually, I noticed that MandM has a post up about judging right now!)
I wonder if my regular readers have ever heard any self-refuting statements? If you know any more, leave it in the comments.
On another topic, it turns out that the author of this post on self-refutation blogs at Rational Thoughts. I added their blog to the blog roll. Check them out.