"It is an astonishing thing to be alive in the universe, and we should celebrate it every day."

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

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

"We have lingered long enough on the shores of the cosmic ocean. We are ready to set sail for the stars."

"The brain is a very big place in a very small space."