One of the great commandments of science is: 'Mistrust arguments from authority.'

Some racists still reject the plain testimony written in the DNA that all the races are not only human but nearly indistinguishable. . . .

The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.

Every time you look up at the sky, every one of those points of light is a reminder that fusion power is extractable from hydrogen and other light elements, and it is an everyday reality throughout the Milky Way Galaxy.

We are star stuff harvesting sunlight.

If we long to believe that the stars rise and set for us, that we are the reason there is a Universe, does science do us a disservice in deflating our conceits?

The open road still softly calls, like a nearly forgotten song of childhood