Successful movements also need an organisational model that allows them to keep growing.

I might find myself standing, transfixed, by the roadside, watching a sparrowhawk hunting among the bushes, astonished that other people could ignore it. But they might just as well be wondering how I could have failed to notice the new V6 Pentastar Sahara that just drove past.

Immense wealth translates automatically into immense environmental impacts, regardless of the intentions of those who possess it.

Places that have become agricultural deserts, trashed by giant corporations, could be reforested, drawing carbon dioxide from the air on a vast scale. The ecosystems of land and sea could recover, not just in pockets but across great tracts of the planet.

One of the biggest mistakes entrepreneurs make is not understanding the relationship they have with their investors. At times, they confuse VCs with their friends.

People think if you are a celebrity and if you're beautiful, or if you're slim, then life is a bed of roses. Or they think that if you're wealthy, you don't have normal relationship problems, because why would anyone reject you?

Out of all my friends, I believe I'm the only kid whose dad made us work to cut rebars; we laid bricks in construction sites and did other real work every summer for minimum wage. Our dad said that it's important in the future that when we tell people to dig a hole, that you personally know how long it will take to dig that hole.

Life is relationships and what we're trying to do together. And please, that's what people have been singing about forever. That's what the blues is all about - the good, the bad, the fun, all of it - that lies there in between a man and a woman.