I found this here on a belief website, of all places. Of course the computers in this house rarely access web pages like that, but I followed this link from a blog I read. Anyway, the quote below...

Now, it must be stressed that this is not to say that we all have the right to decide on our own reality. It is, however, to say that while it is undoubtedly true that not all visions of reality are equally valid -- there is not, for example, a Goodyear blimp floating in the air outside my office window, and someone who insisted that there was would plainly be mad -- we should be cautious about asserting the triumphant truth of our own way of seeing the world. We don't always know what we think we know, and we never know what we don't know.

Things for human society will not change until this concept is second nature. Wouldn't that be something.