Dinosaurs are extinct today because they lacked opposable thumbs and the brainpower to build a space program.

“The most accessible field in science, from the point of view of language, is as…”

“For me, I am driven by two main philosophies: know more today about the world t…”

“Still, our knowledge of the planets was meager, and where ignorance lurks, so t…”

“Curious that we spend more time congratulating people who have succeeded than e…”