Aristophanes, the ancient Greek playwright, he described the clouds as the patron goddesses of idle fellows two and a half thousand years ago, and you can see what he means. It's just that these days, us adults seem reluctant to allow ourselves the indulgence of just allowing our imaginations to drift along in the breeze, and I think that's a pity. I think we should perhaps do a bit more of it. I think we should be a bit more willing, perhaps, to look at the beautiful sight of the sunlight bursting out from behind the clouds and go, 'Wait a minute, that's two cats dancing the salsa! ‘Or seeing the big, white, puffy one up there over the shopping centre looks like the Abominable Snowman going to rob a bank. Perhaps you're having a moment of existential angst. You know, you're thinking about your own mortality. And there, on the horizon, it's the Grim Reaper. But one thing I do know is this: the bad press that clouds get is totally unfair. I think we should stand up for them, which is why, a few years ago, I started the Cloud Appreciation Society. Tens of thousands of members now in almost 100 countries around the world. And all these photographs that I'm showing, they were sent in by members. And the society exists to remind people of this: clouds are not something to moan about. Far from it. They are, in fact, the most diverse, evocative, poetic aspect of nature.