Weve arranged a civilization in which most crucial elements profoundly depend on science and technology. – Carl Sagan
If we like them, theyre freedom fighters . . . If we dont like them, theyre terrorists. In the unlikely case we cant make up our minds, theyre temporarily only guerrillas. – Carl Sagan
Skeptical scrutiny is the means, in both science and religion, by which deep thoughts can be winnowed from deep nonsense. – Carl Sagan
If you wish to make an apple pie from scratch, you must first invent the universe. – Carl Sagan
Thousands of years ago, humans domesticated every possible large wild mammal species fulfilling all those criteria and worth domesticating, with the result that there have been no valuable additions of domestic animals in recent times, despite the efforts of modern science. – Jared Diamond