Advertising quotes

I have spent far too much time this afternoon looking for positive quotes about advertising. You wouldn't think it would be that difficult.. and it isn't, if you want something negative!

The only remotely interesting ones I have found are:

"Advertising is the foot on the accelerator, the hands on the throttle, the spur on the flank that keeps our economy surging forward."

And my personal favourite:

"Advertising is the most fun you can have with your clothes on."

I wish someone important would say something nice about advertising. Go on, surprise me.