Over a very small number of rolls of the dice, the uncertainty principle is very important.

Scientists tend to risk theories they admire

To confine our attention to terrestrial matters would be to limit the human spirit.

We explore because we are human and we want to know. I hope that Pluto will help us on that journey.

When the going gets tough, the tough take a coffee break.

Scientists have become the bearers of the torch of discovery in our quest for knowledge.

I don't want to write an autobiography because I would become public property with no privacy left.