Quotes by : David Christian

As an anonymous wit is supposed to have put it: "Hydrogen is a light, odorless gas which, given enough....

In literature classes, you don't learn about genes; in physics classes you don't learn about human evolution.....

Modern scientific knowledge appeared piecemeal. Historians wrote about human history; physicists tackled....

I believe human beings mark a threshold in the development of the planet, of course, but it is only part....