Observations indicate that the universe is expanding at an ever-increasing rate. It will expand forever, getting emptier and darker. Although the universe doesn’t have an end, it had a beginning in the Big Bang. One might ask what is before that but the answer is that there is nowhere before the Big Bang just as there is nowhere south of the South Pole.

Although September 11 was horrible, it didn't threaten the survival of the human race, like nuclear weapons do.

If what we regard as real depends on our theory, how can we make reality the basis of our philosophy? But we cannot distinguish what is real about the universe without a theory. It makes no sense to ask if it corresponds to reality, because we do not know what reality is independent of a theory.

Scientists tend to risk theories they admire

Work gives you meaning and purpose and life is empty without it.

One cannot really argue with a mathematical theorem.

It is reasonable to ask who or what created the universe, but if the answer is God, then the question has merely been deflected to that of who created God.