I had in mind a message, although I hope it doesn't intrude too badly, persuading Americans, and especially Southerners, of the critical importance of land and our vanishing natural environment and wildlife.

Far more important throughout the rest of science is the ability to form concepts, during which the researcher conjures images and processes by intuition.

I doubt that most people with short-term thinking love the natural world enough to save it.

The human race is not divided into two opposing camps of good and evil. It is made up of those who are capable of learning and those who are incapable of doing so.

Evolution by natural selection is not an idle hypothesis. The genetic variation on which selection acts is well understood in principle all the way down to the molecular level.

The human mind evolved to believe in the gods. It did not evolve to believe in biology.

In the attempt to make scientific discoveries, every problem is an opportunity — and the more difficult the problem, the greater will be the importance of its solution.