Terry Greyland

“In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion.”
― Carl Sagan

“I would love to believe that when I die I will live again, that some thinking, feeling, remembering part of me will continue. But as much as I want to believe that, and despite the ancient and worldwide cultural traditions that assert an afterlife, I know of nothing to suggest that it is more than wishful thinking.”
― Carl Sagan, Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium

“Science is not only compatible with spirituality; it is a profound source of spirituality.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Imagination will often carry us to worlds that never were, but without it we go nowhere.”
― Carl Sagan