I've always been more interested in organisms that can move on their own than in stationary plants. But when I canoe or hike along the edge of lakes or oceans and see trees that seem to be growing out of rock faces, I am blown away. How do they do it?

The failure of world leaders to act on the critical issue of global warming is often blamed on economic considerations.

The future doesn't exist. The only thing that exists is now and our memory of what happened in the past. But because we invented the idea of a future, we're the only animal that realized we can affect the future by what we do today.

If America wants to retain its position as a global power, its president must listen to the people and show strong leadership at this turning point in human history.

We have all these politicians that claim they're pro-life and that say women should not be able to get abortions and all this other stuff... there's nothing more pro-life than helping a woman who wants to have a child have a child. Then I realized that health insurance doesn't cover IVF.

We need to do everything we can to protect the health and welfare of children around the world, but fortunately, it's getting easier to provide things like medication and care.

We could try freedom for a while. We had it for a long time. That's where you sell something, and I agree to buy it because I like it. That is how we operate in most of rest of the marketplace other than health care.

If you're healthier, you tend to have a lower demand for health services.