The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.
CARL SAGANThe absence of evidence is not evidence of absence.
More Carl Sagan Quotes
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If you wish to make an apple pie from scratch, you must first invent the universe.
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When we look up at night and view the stars, everything we see is shinning because of distant nuclear fusion.
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Perhaps the depth of love can be calibrated by the number of different selves that are actively involved in a given relationship.
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There are as many atoms in one molecule of DNA as there are stars in a typical galaxy.
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A book is made from a tree. It is an assemblage of flat, flexible parts (still called “leaves”) imprinted with dark pigmented squiggles.
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Avoidable human misery is more often caused not so much by stupidity as by ignorance, particularly our ignorance about ourselves.
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Not explaining science seems to me perverse. When you’re in love, you want to tell the world.
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Where we have strong emotions, we’re liable to fool ourselves.
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There are no forbidden questions in science, no matters too sensitive or delicate to be probed, no sacred truths.
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Understanding is a kind of ecstasy.
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All over the world there are enormous numbers of smart, even gifted, people who harbor a passion for science.
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The significance of our lives and our fragile planet is then determined only by our own wisdom and courage.
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If it can be destroyed by the truth, it deserves to be destroyed by the truth.
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We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology.
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Writing is the greatest of human inventions, binding together people, citizens of distant epochs, who never knew one another.
CARL SAGAN