Here is the tragedy: when you are the victim of depression, not only do you feel utterly helpless and abandoned by the world, you also know that very few people can understand, or even begin to believe, that life can be this painful.

Every year of my working life, I have been fortunate enough to earn more money than I have spent.

Trust me, you know when you've got depression.

If you're talking to a child, you're going, 'This is the wonder of science and here's why I'm so fascinated by it.'

There really is only one story that you need to tell as a scientist or a technologist. It's Prometheus stealing fire. That's it. That's what we do as scientists or technologists.