Philanthropy should be taking much bigger risks that business. If these are easy problems, business and government can come in and solve them.

There are ecosystems like coral reefs [at risk] through ocean acidification. Those are valuable things that we should protect.

In the same way that when the car got going, people thought it would be an electric car, people thought it would be a steam car.

Life is not a continuous process, there's some sort of finite number of achievements that defines your life.

If geek means you're willing to study things, and if you think science and engineering matter, I plead guilty. If your culture doesn't like geeks, you are in real trouble.

In the decade ahead I can predict that we will provide over twice the productivity improvement that we provided in the '90s.

The most impactful dollars that Australia can spend are actually what goes to help the poorest.