When you have children, you have to ask yourself what the world will look like in the next 80-100 years, because people get that old these days if everything goes well. Last but not least, as a father I see it as my responsibility to think about my actions and my motives.

The reality is we live in a very dynamic world that's full of risks and all we should really care about are risk drivers – both financial and non-financial. Alternatives may provide us with ways of hedging out or managing future risks better.

If you only listen to the voices around you, you'll amalgamate them into something that already exists… My view was that consensus isn't going to build something that will change the game.

What I like the most and essentially is never done is to start off a negotiation by talking about how you'll negotiate, what's the process going to be? And to say things like 'my goal in this negotiation is to reach an agreement with you in which we create a giant pie and split it evenly.'

A lot of aid goes to displacement camps, which are necessary in the immediate aftermath of a crisis but are short-term and frankly undignified band-aids. The community feels hopeless in that environment where every day is the same and there are no opportunities to rebuild their lives.

I'm particularly interested in the human propensity to copy behaviours that lack any kind of knowable causal structure. This is how we learn arbitrary conventions—and I think it originates in a distinctively human way of building group identities. I describe ritual actions as causally opaque. We engage in this kind of behaviour even more enthusiastically when we're anxious about being excluded or left out.

The first thing to do for our ecology is not to use less electricity, it's to cease buying things that are not useful.

There's an adage, 'you don't ask? You don't get!' And in the curious world of humans, this applies more than you'd expect. You'd be astonished at how many people kick themselves after an event not having secured the contact they wanted to, or speaking to the person they had aimed for. In truth, this came down to not being bold enough.

Identities are useful – if you had to make everything up in your life, from the start, with no input whatsoever – that wouldn't be freedom – you'd be less free; you'd have to think constantly about what you should or should not do. There would be no structure for your life choices.

MIT was one of the places where molecular biology was born, and I could participate in this enterprise with my own hands.

Space is a pretty scary place. Here on Earth, we're surrounded by nature and a nice blue sky. You don't realise that 16km above you, things start to go black…. 100km it's an inhospitable vacuum that will kill you in less than 60 seconds. Think how far we've come as humanity- we're a living species who have managed to escape our own planet.

We're no longer just measuring ourselves against the 120 members of our local community. Instead, with our devices, we're exposed to global icons like Bill Gates, Oprah, or LeBron James, setting standards for our intelligence, beauty, and self-worth. This expanded comparison can be detrimental.