The temptation to believe that the Universe is the product of some sort of design, a manifestation of subtle aesthetic and mathematical judgment, is overwhelming. The belief that there is "something behind it all" is one that I personally share with, I suspect, a majority of physicists.

Perhaps the best motivation for going to Mars is political. It is obvious that no single nation currently has either the will or the resources to do it alone, but a consortium of nations and space agencies could achieve it within 20 years.

Until now, physical theories have been regarded as merely models with approximately describe the reality of nature. As the models improve, so the fit between theory and reality gets closer. Some physicists are now claiming that supergravity is the reality, that the model and the real world are in mathematically perfect accord.

Matter is regarded as being constituted by a region of space in which the field is extremely intense . . . . . . There is no place in this new kind of Physics both for the field and matter, for the field is the only reality.

Ultimate questions will always lie beyond the scope of empirical science as it is.

No attempt to explain the world, either scientifically or theologically, can be considered successful until it accounts for the paradoxical conjunction of the temporal and the atemporal, of being and becoming. And no subject conforms this paradoical conjuction more starkly than the origin of the universe.

In 1911 the little town of Nakhla in Egypt was the scene of one of the most remarkable events in historym when a chunk of rock fell from the sky and killed a dog. This is the only known canine fatality caused by a cosmic object. Improbably though this encounter was already, its truly extraordinary nature was revealed only decades later when scientists found that the culprit was not a common-or-garden meteorite, but a piece of the planet Mars.