And that's a lot of the reason why we care so much about our careers and indeed start caring so much about material goods. You know, we're often told that we live in very materialistic times, that we're all greedy people. I don't think we are particularly materialistic. I think we live in a society which has simply pegged certain emotional rewards to the acquisition of material goods. It's not the material goods we want;

市场是人性的反映，而人性永远不会改变。

It’s a lie to think you’re not good enough. It’s a lie to think you’re not worth anything.

Sustainable development requires balancing economic benefits with environmental protection.

Kindness is the greatest wisdom.

I'm more interested in the journey than the destination.

在不幸中所表现出来的勇气，通常总是使卑怯的心灵恼怒，而使高尚的心灵喜悦的。

Sustainability isn't a buzzword; it's a business imperative.