We need to get a broader awareness. People say climate change is really bad, but painting that picture of what you're putting at risk.

I didn't used to wear a watch. Now I have a SPOT watch, which I wear all the time.

During the past two centuries, innovation has more than doubled our life span and given us cheap energy and more food. If we project what the world will be like 10 years from now without continuing innovation in health, energy or food, the picture is dark.

Just in terms of allocation of time resources, religion is not very efficient. There's a lot more I could be doing on a Sunday morning.

There's 20 companies that I have investments in - some batteries, some solar-thermal, one big nuclear thing. We need hundreds and hundreds of companies like that, so that in a 20-year time frame we really are starting to change the energy infrastructure.

I don't think there is any philosophy that suggests having polio is a good thing.

We need a malaria epidemic in the blogging community! Either that or we need people who have seen the malaria epidemic to start blogging.