Along the borders to Ethiopia and Somalia, anarchy reigns, the police and military have retreated quite some distance.

We are concerned that, in a few years time, this place of discovery, with its wealth of human fossils, the like of which can be found nowhere else in the world, could be completely destroyed.

Whether or not all this came to pass in an East African ditch, I wouldn't like to say. Perhaps it happened in North Africa or further west, but Africa was definitely the place.

A number of scientists with greatly different backgrounds can come up with completely different assessments. The discussions or controversies are endless. Once a year, we try to bring the most important discoverers together to exchange their experiences and knowledge.

Our nation's military is effective because it is nonpartisan, relies heavily on science and technology, and takes the world as it is, not as it wishes it to be.

The discovery and investigation of life on other planets is likely to change many of our ideas about how life arose on the Earth and even what is life and its natural development.

Every great advance in science has issued from a new audacity of imagination.

The Web is now philosophical engineering. Physics and the Web are both about the relationship between the small and the large.