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

We are star stuff which has taken its destiny into its own hands.

Has there ever been a religion with the prophetic accuracy and reliability of science? . . . No other human institution comes close.

The usual rejoinder to someone who says 'They laughed at Columbus, they laughed at Galileo' is to say 'But they also laughed at Bozo the Clown'.

There are many hypotheses in science which are wrong. That’s perfectly all right: it’s the aperture to finding out what’s right. Science is a self-correcting process.

We are all made up of star stuff.

There is a report that says that kids who watch violent TV programs tend to be more violent when they grow up. But did the TV cause the violence, or do violent children preferentially enjoy watching violent programs?