The perspective of seeing the Earth from space has rewired our brain. We used to have a 2-dimensional view for hundreds of thousands of years. Now with space telescopes we have a 4-dimensional view of our universe.

For me, that's the foundation of songwriting: improvisation. In improvisation on instruments, I feel creation is going a new path with every note, somewhere you haven't been before. You discover things, you're the adventurer in music.

As a collective, we tend to look at progress as being linear, especially where it concerns women's rights. This is a huge mistake and breeds complacency because we risk losing the hard-won gains.

The people who will be disproportionately harmed by climate change are those who are (in general) less advantaged economically and socially. Justice means equality of opportunity for all human beings, and that equality of opportunity is quickly reduced if you're in Bangladesh and your home is flooded or if you're in Nigeria and your crops fail because the rains have changed.

Algorithms understand and can guide me better than I can guide myself. The real game-changer is data. I'm willing to yield control to an algorithm that proves to be superior.

When you're a child, you define your team as those wearing the same jerseys and your team's goal is to defeat anyone wearing different jerseys. But as you get older, your notion of what constitutes a team evolves.

Quantum mechanics is a consistent mathematical structure, not that difficult to understand in itself, which nature has chosen. The confusing thing is that nature chose something that doesn't feel intuitive to us. It has a reputation for being mystifying mainly because of its history rather than what it really is as a theory.

Data is showing that the amount of information we're sending them without hope, and the ratio of hope versus negativity, is shutting down the next generation, which is terrifying. And so it's not like, 'Oh my gosh, there's a fire—they're going to go put the fire out.' They're like, 'Oh my gosh, what's the point? The fire is too big.'

The easiest piece of advice to give, but the hardest to follow- is to not let yourself get swept up in the next bubble. You could have said that about tech stocks in the 90's, housing prices around the world in the early 2000's… but people always got swept up in them. The history of financial bubbles does not give cause for optimism.

Ultimately, you have to fail at some stage with whatever you do, to get the successes that you need in the end.

You cannot understand entrepreneurial activity without understanding optimism. Research has shown that optimism and overconfidence in individuals is directly linked to their engagement in entrepreneurial activity.

Our envy of birds certainly helped drive our will to fly, however I think Leonardo was probably held back by trying to emulate the flapping of birds; that doesn't work with human muscles. We had to free ourselves of the perception that you need to flap your wings.