Billy Connolly

I started to draw desert islands. They were just rough, shapes in the middle of the page. Then I began drawing shapes within those shapes and I was amazed how quickly the islands got better. It took off from there.

I would absolutely recommend against excessive positivity and optimism. Any positive emotion that you're infusing into a workplace needs to be grounded in reality. If it's not realistic, sincere, meaningful, and individualized, it won't do much good.