Not for the sake of our health, though it's often presented that way, but because it's an escape from the human anthill. It's an escape from our own competition, and our own dramas. And that's why ween joy looking at glaciers and oceans, and contemplating the Earth from outside its perimeters, etc. We like to feel in contact with something that is non-human, and that is so deeply important to us.

The man who is fit to work at any particular trade is unable to understand the science of that trade without the help and guidance of those who are working with him or over him.

The great challenge of modern politics is to reconcile the demands of identity with the requirements of liberal democracy.

支持进化的证据是压倒性的。