"Who are we? We are a collection of water and a few fundamental chemicals, but we are also a way for the universe to know itself."

"The cosmos is also within us. We are made of star-stuff. We are a way for the universe to know itself."

"The notion that the pre-Copernican Earth was flat is a common misconception."

"If we are to survive, we must be willing to change."

"The truth may be puzzling. It may take some effort to grasp. It may be counterintuitive. It may contradict deeply held prejudices. It may not be easy to do what the truth demands. But none of that mak…"