So much of silence is about perpetuating the status quo, reinforcing what someone or dominant groups within an entity or organization have deemed appropriate, good, polite. Being different inherently exposes you to vulnerability; you're pushing against everything that the forces of mimicry urge you to do, which is to conform. Yet, we also recognize that innovation is impossible without differing opinions.

Online trolling and abuse is a real problem now. A lot of people who want to express an opinion now are fearful that they'll get piled-on. And there's no real immunity from it: Zadie Smith's brilliant New Yorker story 'Now More Than Ever' is really an expression of her terror of the arbitrary possibility of being judged by a moralistic internet pile-on, of being as they say cancelled.

People ask why we're spending money on space exploration when we have problems here on Earth. The first reaction I have to this the fact that we've had wars, poverty, and homelessness long-before anyone went into space. It's not accurate to say, 'we're doing space exploration, and that's why we have poverty.' If we stopped space exploration, those problems wouldn't be solved, they haven't been solved in thousands of years.

Champions possess a distinct mindset, a relentless drive for excellence that sets them apart. They're not content with just doing okay; they strive for excellence constantly. Being second is not an option for them, they aim for the top.

There's definitely a sense that regulators don't understand how firms operate and the practicalities of what they do- and hence that regulations won't help resolve the issues, such as governance issues, that are there.

The most important part of being at a festival, is being completely present in those moments. If you put your phone in your pocket, you'll probably have a better time.

HIV prevalence among injecting drug users ranges from 20-40% in some countries, and more than 40% in many others. If we estimate the number of injecting drug users worldwide as 60 million, it means that around 3 million people are infected with HIV/AIDS because of this dangerous mode of transmission.

Today, information is omnidirectional – you have to respond to it immediately- and you have to empower people, in the field, to make decisions, or you will fail. Leaders today are far less involved with telling people what to do, and much more involved with setting goals and providing guardrails.

So Manchester and Sheffield had to apply to Transport for London for money to allocate to their bus routes. This is so comically bizarre that if you put it in a novel it would seem too silly. But that's how it is. The power is amazingly concentrated in Whitehall with a few very clever technocrats who go into it as their first job.

There is a proverb in Hebrew that says that there used to be prophecy, but prophecy is now left for fools. I am not enthusiastic about forecasting anything.

In rich countries, 'innovation' often means finding a better way of doing things. But in developing countries, it can mean finding a way to do things at all.

organisations will often behave in international economic theatres (such as China) with the same operational processes and assumptions as their 'home' environments (such as Australia) with the assumed protection of the legal, political and other systems of their 'home' environments.