All inquires carry with them some element of risk. There is no guarantee that the universe will conform to our predispositions.

Too much openness and you accept every notion, idea, and hypothesis-which is tantamount to knowing nothing. Too much skepticism-especially rejection of new ideas before they are adequately tested-and you're not only unpleasantly grumpy, but also closed to the advance of science. A judicious mix is what we need.

We live at a moment when our relationships to each other, and to all other beings with whom we share this planet, are up for grabs.

Science is not perfect. It's often misused; it's only a tool, but it's the best tool we have. Self-correcting , ever changing, applicable to everything: with this tool, we vanquish the impossible.

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.

We on Earth have just awakened to the great oceans of space and time from which we have emerged.

We are a way for the cosmos to know itself.