Tony Blair (1)

"If we take all this action and if it turns out not to be true, we have reduced pollution and have better ways to live, the downside is very small. The other way around, and we don’t act, and it turns out to be true, then we have betrayed future generations and we don’t have the right to do that."

-- attributed to Tony Blair (politician, diplomat, author, teacher, businessman; Prime Minister of the United Kingdom (1997-2007))

Note for ESL learners: The grammar (above) isn't very good but we decided to include this quotation anyway.