Don't ever, ever devalue your product. Ever. It's the worst thing anyone can do to hurt your brand.

The worst thing we can do is to do nothing.

The worst thing in the world is to be tired.

You are so much more than the worst thing you've ever done.

The worst thing that we could do is raises taxes. It would only hurt the economy.

I've been as critically rubbished as acclaimed and the worst thing about that is that it usually plays into your own self-criticism.