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

“A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism.”

“We are star stuff harvesting sunlight.”

“We make our purpose.”

“Look again at that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggre...”

“If it can be destroyed by the truth, it deserves to be destroyed by the truth.”

“Scenery is fine -but human nature is finer”

“As for me, I have a choice between honoring that dark life I've seen so many years moving in the junipers, or of walking away and going on with my own human busyness. There is always that choice fo...”

“Nature allows one kind to kill another, it's part of the law ... you wonder if man might not be the most savage of all creatures. He's among the few that preys on nearly every other being, that con...”