I believe a key issue is this newfound ability to hide behind our screens, which gives a false sense of impunity, allowing people to express themselves without restraint. The more time we spend glued to our screens, the less we engage in meaningful, real-world exchanges.

We have to constantly evolve how we make an impact, and make sure that we're doing what the communities we work in want us to support rather than enforcing some kind of model. Our work has to be led by the leaders of communities telling us what will work.

You have to understand, for instance, that in my lifetime until I was fifty or so- I had not witnessed any period without inflation of twenty or thirty percent, and sometimes one hundred percent.

I had this burning passion in me to prove to myself, and on behalf of other women, that if my voice was being stifled... and if I was being treated a certain way... that I had to stand up. What type of example would I set to other women and girls? I had to show that if you get knocked off the horse, you get right back up.

On the court, there was no prejudice, just your contribution to the team. Off the court, teamwork seemed like a parody of what we did. So, the lesson I eventually learned was to distinguish between which teams are sincere in promoting true teamwork, and which are jingoistic self-serving pretenders.

A designer is a designer, whether you're designing a dress or a toothbrush. The integrity, skill and creativity are all the same.

Sometimes, rappers' lyrics really do offer gripping tales of loss, sorrow, exploitation, rage, confinement, hopelessness, and despair about conditions that are denied in the larger society.

My interest is not whether something could dematerialize in my hand, but how people can be misled. You can this very dangerous thing- lying- and make it safe to play around with.

It's quite remarkable that we, creatures who evolved dodging predators on the African savannah, have been able to develop quantum mechanics. I find this to be a splendid evolutionary offshoot.

The head of the Bank of England, Mervyn King, privately criticised David Cameron and George Osborne before the election for their lack of experience, the lack of depth in their inner circle and their tendency to think about issues only in terms of their electoral impact.

In some ways, emulating birds would have held us back – yes it would have given us the drive and motivation, but we had to forget about flapping to develop the combustion engine driven plane!

The water crisis is not a future threat - it's a present reality. Every minute we delay action, two children die from preventable water-related diseases. This is not just an environmental issue, it's a moral emergency.