If intelligence is our only edge, we must learn to use it better, to shape it, to understand its limitations and deficiencies -- to use it as cats use stealth, as katydids use camouflage -- to make it the tool of our survival.

Human history can be viewed as a slowly dawning awareness that we are members of a larger group.

The size and age of the Cosmos are beyond ordinary human understanding. Lost somewhere between immensity and eternity is our tiny planetary home.

I can find in my undergraduate classes, bright students who do not know that the stars rise and set at night, or even that the Sun is a star.

The surface of the Earth is the shore of the cosmic ocean.

Who will speak for Planet Earth?

The prediction I can make with the highest confidence is that the most amazing discoveries will be the ones we are not today wise enough to foresee.