Richard Feynman, who was one of the world’s greatest physicists and was a leader in quantum mechanics, was talking to Yo-Yo Ma.

I’m dropping names here left and right, I know, but he was talking with Yo-Yo Ma and said to Yo-Yo Ma that nature has the greatest imagination of all, but she guards her secrets jealously.

What I find amazing about nature is that first of all, it’s right there and that it’s easily accessible.

The physiological things that happen to you and I when we’re in nature just cannot be bought anyplace else.

No matter how many pharmaceuticals we think we can take, nothing can do for you at the price range and the total physiological effect that nature does — nothing can.