Wishful thinking is not sound public policy.

The obvious issue is providing clean drinking water and sanitation to every single human being on earth at the cost of little more than one year of the Kyoto treaty.

The Kyoto treaty has an estimated cost of between US$150 and $350 billion a year, starting in 2010.

My suggestion is that we should first work to ensure the Third World has clean drinking water and sanitation.

We need to invest dramatically in green energy, making solar panels so cheap that everybody wants them. Nobody wanted to buy a computer in 1950, but once they got cheap, everyone bought them.

Money spent on carbon cuts is money we can't use for effective investments in food aid, micronutrients, HIV/AIDS prevention, health and education infrastructure, and clean water and sanitation.

On average, global warming is not going to harm the developing world.

The fact that we're catching more fish per person than we've ever done before doesn't mean that there are not particular places where we've managed fisheries badly.

Global warming is real - it is man-made and it is an important problem. But it is not the end of the world.

Think on a 50-year scale, which is a much more natural time-scale for global warming. The US is right now spending about 200 million dollars annually on research into renewable energy.

Obviously any group that has to have funding also needs to get attention to their issues.

But it's not the pressure of data that gives rise to the understanding. It's, on the contrary, the child's own struggle to make sense of the data

and the boy's eyes are searching hers with something like loneliness, like the very last thing he wants is to be left behind right now.

If you deny yourself commitment what can you do with your life?

I'm on this diet where you're supposed to eat only fish and meat.

TV critics, who traditionally hate television and make their living writing about it, often didn't like what I did on the air.

I love what Joe Eszterhas written about Bill Clinton. It's hilarious, Clinton as a rock star, which is the way we should remember him.

One of the most noble things you can do is kill the enemy.

Common fluency of speech in many men and most women is owing to a scarcity of matter.

The mind is but a barren soil; a soil which is soon exhausted, and will produce no crop, or only one, unless it be continually fertilized and enriched with foreign matter.

When I talk about divorce, I am not blaming the women I've married. It's not their fault.