"Somewhere, something incredible is waiting to be known."

"Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another."

"The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff."

"Science is not only compatible with spirituality; it is a profound source of spirituality."

"One glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time."

"If you wish to make an apple pie from scratch, you must first invent the universe."

"For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring."

"Extraordinary claims require extraordinary evidence."

"Imagination will often carry us to worlds that never were, but without it we go nowhere."