Americans born since World War II have grown up in a media-saturated environment. From childhood, we have developed a sort of advertising literacy, which combines appreciation for technique with skepticism about motives. We respond to ads with at least as much rhetorical intelligence as we apply to any other form of persuasion.

Scientists appear most often in horror movies. Through childlike curiosity or God-defying hubris, they unleash destructive forces they can't control - 'Forbidden Planet's Monsters of the Id.

Wars without military objectives have a tendency to go on forever.

Medicare is a monopoly: a central-planning bureaucracy grafted onto American health care. It exercises a stranglehold on the health care of all Americans over 65, and on the medical practices of almost all physicians. Medicare decides what is legitimate and what is not: which prices may be charged and which services may be rendered.

My father was a physicist, while I am a biogeochemist. I live to study plants, and he has never had more than a generic interest in biology.

People believe that art and science are two distinct realms. It is far from the truth because, if you look at science from a microscope or from a different lens, you can see the beauty in science. It is very artistic.

The odds against life in the universe are simply astonishing. Yet here we are, not only existing, but talking about existing. What can account for it? Can every one of those many parameters have been perfect by accident? At what point is it fair to admit that science suggests that we cannot be the result of random forces?

Science is the captain, and practice the soldiers.