“Look again at that (blue) dot (Earth seen from space). That's here. Th...” — Carl Sagan Quote

“Look again at that (blue) dot (Earth seen from space). That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you have ever heard of, every human being who ever was, lived out their lives...There is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly with one another, and to preserve and cherish the pale blue dot, the only home we've ever known.”

“Science is a way of thinking much more than it is a body of knowledge.”

“What an astonishing thing a book is. It's a flat object made from a tree with flexible parts on which are imprinted lots of funny dark squiggles. But one glance at it and you're inside the mind of another person, maybe somebody dead for thousands of years. Across the millennia, an author is speaking clearly and silently inside your head, directly to you. Writing is perhaps the greatest of human inventions, binding together people who never knew each other, citizens of distant epochs. Books break the shackles of time. A book is proof that humans are capable of working magic.”

“I am often amazed at how much more capability and enthusiasm for science there is among elementary school youngsters than among college students.”

“It's a lazy Saturday afternoon, there's a couple lying naked in bed reading Encyclopediea Brittannica to each other, and arguing about whether the Andromeda Galaxy is more 'numinous' than the Ressurection. Do they know how to have a good time, or don't they?”

“You know what's wrong with scientific power? It's a form of inherited wealth. And you know what assholes congenitally rich people are.”

“There does not exist a category of science to which one can give the name applied science. There are science and the applications of science, bound together as the fruit of the tree which bears it.”

“I never, as a reader, have been particularly interested in dystopian literature or science fiction or, in fact, fantasy.”

“When students cheat on exams it's because our school system values grades more than students value learning.”

“Anybody who has done high school physics knows Newton’s Third Law. For every action there is an equal and opposite reaction. You push against a wall; it pushes back against you. I love the poetry hidden in these truths, in the many laws we’ve discovered that underpin the universal fabric. We search for meaning ever hungrier, perhaps even with desperation: the symmetry in the equations freaks us out; for all we know, there is just us on this lonely little marble in the inky void.”