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The joy of discovery is what keeps scientists going.

I'm not going to sit here and say I'm a role model, because I'm not trying to be.

The most sustainable businesses are those that balance economic growth with environmental responsibility.

"I think people believe in heaven because they don’t like the idea of dying, because they want to carry on living and they don’t like the idea that other people will move into their house and put their things into the rubbish."

Stories are the way we make sense of the chaos of existence.