All policies should be guided by science, not just whose voice is the loudest.

I can't say I'm not grateful to have journalists writing about me as a genius. But I know it's not true. I'm not confused. I understand that success comes through a lot of failure and a lot of very embarrassing failure. People want to create the next Facebook, but they are too afraid to create the next Facemash.

We have to embrace obstacles to reach the next stage of joy.

When you have an iPad and 75 books on it, it's so easy to go, 'I'm bored, I'm just going to read something else.'