I just want to remind us all there are billions of people in the world who are deeply religious, who get enriched by the wonderful sense of community by their religion. But these same people do not embrace the extraordinary view that the Earth is somehow only 6,000 years old.

My father was a very good Boy Scout. He was very skilled with knots, and he showed me how to tie a bow tie.

For me, the meaning of life is pretty clear: Living things strive to pass their genes into the future.

Apparently there is redundancy in memory: You store the same memory in different parts of your brain for accessing at different speeds. That speed would depend on the frequency of use and the importance of the knowledge.

Not wasting any water bottles is good. Not leaving the lights on is good. Turning the thermostat down in the winter, up in the summer, is good. But the best thing any of us in the developed world, especially in the United States, can be doing is talking about it.

I understand that you take the Bible, as written in English, translated many many times over the last three millennia as to be a more accurate, more reasonable assessment of the natural laws we see around us than what I and everybody in here can observe. That, to me, is unsettling.

Bicycling is a big part of the future. It has to be. There's something wrong with a society that drives a car to work out in a gym.