With tech companies, whoever's the leader is always questioned, you know. They say, 'Is this the end of them?' And - there's more - more times people think that's the case than it really is the case.

It's fine to celebrate success but it is more important to heed the lessons of failure.

We should all grow our own food and do our own waste processing, we really should.

The trouble with energy farming is that the energy isn't always where you want to use it, and it isn't always when you want to use it.

We'll have infinite bandwidth in a decade's time.

Leaders are those who empower others.

Bioterrorism is like earthquakes, you should think in order of magnitudes. If you can kill 10 people that's a one, 100 people that's a two... Bioterrorism is the thing that can give you not just sixes, but sevens, eights and nines.