What Does It Take to be True?

I read the first sentence in the first panel of today’s Inkpen and it made me stop. When does saying something make it true? Could I think of an example? I’ll let you think about that while you look at the comic, the rest of which isn’t really germane to this post…

I thought of two examples before I read the rest of the comic. And let’s allow more verbs than just “say.”

I am writing this sentence.
You are reading this sentence.

Of course we could get philosophical here and you could point out that the first sentence was true only when I was writing it, and the second isn’t true until you read it.

So all right then; think of a better sentence! Share it in the comments.