The open road still softly calls, like a nearly forgotten song of childhood

If we continue to accumulate only power and not wisdom, we will surely destroy ourselves.

There is much that science doesn't understand, many mysteries still to be resolved. In a Universe tens of billions of light-years across and some ten or fifteen billion years old, this may be the case forever. We are constantly stumbling on new surprises

Our concern for the future can be tested by how well we support our libraries.

In many cultures it is customary to answer that God created the universe out of nothing. But this is mere temporizing. If we wish courageously to pursue the question, we must, of course ask next where God comes from? And if we decide this to be unanswerable, why not save a step and conclude that the universe has always existed?

When permitted to listen to alternative opinions and engage in substantive debate, people have been known to change their minds. It can happen.

Better the hard truth, I say, than the comforting fantasy. And in the final tolling it often turns out that the facts are more comforting than the fantasy.