Success is not about how much money you make, it's about the difference you make in people's lives.

We are all haunted by the ghosts of our own pasts, and sometimes, by the ghosts of others.

The hardest part of design is keeping features out.

I wanted to build something that was my own, something I could point to and say, I made that. It was the only way I saw to make life meaningful.

Sustainability isn't a buzzword; it's the only way forward for mining.

The community is a fictitious body， composed of the individual persons who are considered as constituting as it were its members.