I do not equate productivity to happiness. For most people, happiness in life is a massive amount of achievement plus a massive amount of appreciation. And you need both of those things.

Slow down and remember this: Most things make no difference. Being busy is a form of mental laziness-lazy thinking and indiscriminate action.

There is an infinite selection of things that I could test in life, so I generally will look for a critical mass of word that comes back to me. At this point I have hundreds of friends who are the best at what they do, arguably number one in the country or in the world. I will oftentimes just kind of throw a volley out to people, ask them what they're obsessing on or what they find interesting that's on the fringe. If the same answer comes back a few times, I'm like, "Okay."

What's the worst that could happen?

I encourage active skepticism - when people are being skeptical because they're trying to identify the best course of action. They're trying to identify the next step for themselves or other people.

Information is useless if it is not applied to something important or if you will forget it before you have a chance to apply it.

Someday is a dis-ease that will take your dreams to the grave with you.