One test result is worth one thousand expert opinions.

Man is the best computer we can put aboard a spacecraft... and the only one that can be mass-produced with unskilled labor.

Our sun is one of 100 billion stars in our galaxy. Our galaxy is one of billions of galaxies populating the universe. It would be the height of presumption to …

It will free man from his remaining chains, the chains of gravity which still tie him to this planet. It will open to him the gates of heaven.

The criterion which we use to test the genuineness of apparent statements of fact is the criterion of verifiability. We say that a sentence is factually signif…

[The steady-state theory] was a minority view, but [Hoyle] and a few like-minded theorists were able to keep the plate spinning for years. Another Cambridge lu…

I would like to say we're at a point where global warming is impossible to deny. Let's just say that global warming deniers are now on a par with Holocaust den…