There is today-in a time when old beliefs are withering-a kind of philosophical hunger, a need to know who we are and how we got here. It is an on-go….

The Earth is a very small stage in a vast cosmic arena. Think of the rivers of blood spilled by all those generals and emperors so that, in glory and….

Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not fin….

The cosmic calendar compresses the local history of the universe into a single year. If the universe began on January 1st it was not until May that t….

If we can't think for ourselves, if we're unwilling to question authority, then we're just putty in the hands of those in power..

Some 5 billion years from now, there will be a last perfect day on Earth... then the sun will begin to die, life will be extinguished, the oceans wil….

Widespread intellectual and moral docility may be convenient for leaders in the short term, but it is suicidal for nations in the long term. One of t….

In science it often happens that scientists say, "You know that's a really good argument; my position is mistaken...".

The near side of a galaxy is tens of thousands of light-years closer to us than the far side; thus we see the front as it was tens of thousands of ye….

One of the saddest lessons of history is this: If we’ve been bamboozled long enough, we tend to reject any evidence of the bamboozle. We’re no longer….

Who are we, if not measured by our impact on others?.

We seem, these days, much more willing to recognize the perils before us than we were even a decade ago. The newly recognized dangers threaten all of….

It took the Church until 1832 to remove Galileo 's work from its list of books which Catholics were forbidden to read at the risk of dire punishment ….

The open road still softly calls..

Those with the courage to explore the weave and structure of the Cosmos, even where it differs profoundly from their wishes and prejudices, will pene….

The dumbing down of American is most evident in the slow decay of substantive content in the enormously influential media, the 30 second sound bites ….

Science is more than a body of knowledge. It's a way of thinking: a way of skeptically interrogating the universe..

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 ou….

Scientists constantly get clobbered with the idea that we spent 27 billion dollars on the Apollo programs, and are asked "What more do you want?" We ….

Writing a novel is like trying to solve a very long mathematical equation. Changing anything can change everything else..

There are wonders enough out there without our inventing any..