No Man's Land Quotes (1 quote)
We think of something that has four legs and wags its tail as being alive. We look at a rock and say it’s not living. Yet when we get down to the no man’s land of virus particles and replicating molecules, we are hard put to define what is living and what is non-living.
From interview, 'The Seeds of Life', in The Omni Interviews (1984), 4.

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.
(1987) --
Carl Sagan
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