It's easier to add things on to a PC than it's ever been before. It's one click, and boom, it comes down.

I feel pretty stupid that I don't know any foreign languages. I wish I knew French or Arabic or Chinese.

Unfortunately, the highly curious student is a small percentage of the kids.

The billion people who wake up every day trying to figure out if they have enough food to eat won't be at Davos.

Perhaps I should be flattered that somebody imagines the name is worth so much, especially since my parents gave me the same name 42 years ago for free.

The US spends more on energy R&D than all other countries put together, and I personally consider it quite inadequate. In fact, I would have said we should more than double it, if I thought the absorptive capacity could scale up and if it was actually possible to get to that level.

I have this very positive view of the world getting better and better. The list of things that could be huge setbacks is not very long: A nuclear war, climate change and epidemics.