If the greenhouse effect is a blanket in which we wrap ourselves to keep warm, nuclear winter kicks the blanket off.
But I could be wrong. - Carl Sagan
But I could be wrong.
- Carl Sagan
There is never only ONE of anything in nature. - Carl Sagan
There is never only ONE of anything in nature.
If we can't think for ourselves, if we're unwilling to question authority, then we're just putty in the hands of those in power. But if the citizens … - Carl Sagan
If we can't think for ourselves, if we're unwilling to question authority, then we're just putty in the hands of those in power. But if the citizens …
Somewhere, something incredible is waiting to be known. - Carl Sagan
Somewhere, something incredible is waiting to be known.
The truth may be puzzling. It may take some work to grapple with. It may be counterintuitive. It may contradict deeply held prejudices. It may not be… - Carl Sagan
The truth may be puzzling. It may take some work to grapple with. It may be counterintuitive. It may contradict deeply held prejudices. It may not be…
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… - Carl Sagan
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…
Nothing disturbs me more than the glorification of stupidity. - Carl Sagan
Nothing disturbs me more than the glorification of stupidity.
Ask courageous questions. Do not be satisfied with superficial answers. Be open to wonder and at the same time subject all claims to knowledge, w… - Carl Sagan
Ask courageous questions. Do not be satisfied with superficial answers. Be open to wonder and at the same time subject all claims to knowledge, w…
Even through your hardest days, remember we are all made of stardust. - Carl Sagan
Even through your hardest days, remember we are all made of stardust.
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