"I have always been an advocate and was, in my last job at M&S, a supporter of the Al Gore dictum that a sustainable business can be a profitable business. We were the first sizeable company in the UK to prove that was the case."

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You know, we had the elections earlier in the week, and a dead woman, in Pennsylvania, somehow was on the ballot and she was elected to city council. A dead woman actually elected! And I'm thinking, well, I guess there is still hope for Al Gore.

— David Letterman