You have to step back and focus on the merits of the offer- not the person who brought the offer to you. That's how you defend yourself. You recognise that there's something that goes on first as important as the message itself inclining you towards purchase or agreement.

I still believe that nuclear is the greatest risk we face as a society today.

Our brain is local and linear, and we live in a global and exponential world. If you want to keep pace, you have to perform and think at speed and scale – and we're not built for it. Flow is literally our leverage for keeping pace in a global, exponential world.

Torture is defined in international law as the pain suffering that is deliberately inflicted on a person for purposes of interrogation, punishment or any other purpose- and that is severe enough to qualify as torture.

Once the cancer of authoritarianism gets into the veins and organs of society, it's not easy to get-out – they have this very specific way of paralysing political mechanisms and dismantling the fundamental human logic.

Meanwhile, she eschewed Bollywood beauty standards and was frequently castigated in the press for her unique fashion sense and fluctuating weight.

I think in the past, it was more of a zero sum game, and now I think we can play in a positive sum game, which really plays into the whole greenhouse concept, because we can all actually grow together and not feel like we are needing to take in order to achieve.

I usually start at the end. When you listen to a song for the first time, if there's something you remember from it the next day, that's where I can start writing the song. Whatever the takeaway is, that's the starting point for me.

Children are the future of humanity. If we cannot protect our children, if we cannot ensure their rights, their education, their protection from exploitation, then we are failing humanity itself.

Winning is satisfaction. When you are working hard with your team, when you are working day and night, fighting hard, doing the best you can… when you make sacrifices and see things start to grow. That feeling of satisfaction is more important sometimes than money.

They should be stress-testing their balance sheets and portfolios under a range of negative scenarios, and have sufficient capital and liquidity to withstand scenarios that are far out on the tail of the distribution of possible outcomes. The stress tests should account for potential bubbles in global asset markets.

As a psychotherapist, you have diagnostic categories for problems. There are specific techniques and therapies to apply. So the book really comes out of that frustration. If you think about science, it progresses from description, to categorisation, then to explanation, prediction, and control — and I wanted to feel like there was some science behind what I was doing.