“There is an enormous difference between life and intelligent life.” — Marcelo Gleiser Copy Share Image
It's hard enougth to find intelligent life right here in Washington! — William Proxmire Copy Share Image
Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to… — Bill Watterson Copy Share Image
Intelligent life on other planets? I'm not even sure there is on earth! — Albert Einstein Copy Share Image
Intelligent life on a planet comes of age when it first works out the reason for its own existence. — Richard Dawkins Copy Share Image
If this is the only planet on which not only life, but intelligent life, has arisen, that would be very unusual. — Seth Shostak Copy Share Image
The surest sign that intelligent life exists somewhere else in the universe is that it has never tried to contact us. — Young Siddiq Prince Copy Share Image
Were their is intelligent life there is sadness, loneliness, and anger, but their is also happiness, friendship and love. — Anonymous Copy Share Image
We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet. — Stephen Hawking Copy Share Image
The surest sign that intelligent life exists elsewhere in the universe is that it has never tried to contact us. — Bill Watterson Copy Share Image
As the first human to land on any world outside the Earth, and probably the first living creature of any sort to… — Hugh Downs Copy Share Image
Intelligence is something that is not just thinking, it's feeling. Ultimately, the highest reflection of intelligent life is cooperative life in which… — Frederick Lenz Copy Share Image
[In the Universe it may be that] Primitive life is very common and intelligent life is fairly rare. Some would say it… — Anonymous Copy Share Image
“To think that there are no primitive or intelligent life forms outside the world means to have never grasped the ability of… — Mehmet Murat ildan Copy Share Image
“…only in the few universes that are like ours would intelligent beings develop and ask the question: “Why is the universe the… — Stephen Hawking Copy Share Image
My only hope is that every other alien civilization isn't doing exactly what we are doing because then everybody would be listening,… — Neil deGrasse Tyson Copy Share Image
Only when science and technology are used with human concern in a world in which all of the earth's resources are held… — Jacque Fresco Copy Share Image
My scratching I don't really think communicates to intelligent life forms. Anyone with more than one brain cell would think Kid Koala… — Anonymous Copy Share Image
“Looking more closely at Earth’s atmospheric fingerprints, human biomarkers will also include sulfuric, carbonic, and nitric acids, and other components of smog… — Neil deGrasse Tyson Copy Share Image
It seems hopelessly improbable that any particular rules accidentally led to the miracle of intelligent life. Nevertheless, this is exactly what most… — Leonard Susskind Copy Share Image
As we gain satisfaction from artificial substitutes for nature we forget that there is no known substitute for Nature, the real thing… — Michael J Cohen Copy Share Image
I know what cancer was. How is it like humankind?" Sek Hardeen's perfectly modulated, softly accented tones showed a hint of agitation.… — Dan Simmons Copy Share Image
There are 400 billion stars out there, just in our galaxy alone. If just one out of a million of those had… — Jodie Foster Copy Share Image
Well, Congress gave us a billion dollars to dig the hole, this gigantic hole. Bigger, much bigger than the hole in Geneva,… — Michio Kaku Copy Share Image
I keep wondering if, say, there is intelligent life on other planets, the scientists argue that something like two percent of the… — Donald Barthelme Copy Share Image
Intelligent life can't be all that common because it's really rare on Earth and especially since we define ourselves to be intelligent.… — Neil deGrasse Tyson Copy Share Image
“It is triste to contemplate the winding down of the Universe into a cold, dark, lonely place, but we are a young… — Raymond T. Pierrehumbert Copy Share Image
“Ann Druyan suggests an experiment: Look back again at the pale blue dot of the preceding chapter. Take a good long look… — Carl Sagan Copy Share Image
“Astrobiology simply presumes that a planet in the Goldilocks zone containing liquid water will somehow produce life. This leads to the “follow-the-water”… — Cris Putnam Copy Share Image
“So, whether the aliens explore with chemistry or with radio waves, they might come to the same conclusion: a planet where there’s… — Neil deGrasse Tyson Copy Share Image
I believe alien life is quite common in the universe, although intelligent life is less so. Some say it has yet to… — Stephen Hawking Copy Share Image
It would be selfish to believe that we are the only intelligent life in the universe. — Kerli Copy Share Image
Perhaps we've never been visited by aliens because they have looked upon Earth and decided there's no sign of intelligent life. — Neil deGrasse Tyson Copy Share Image
I won't eat anything that has intelligent life, but I'd gladly eat a network executive or a politician. — Marty Feldman Copy Share Image
Why do we worry about intelligent life on other planets if we doubt it here on earth? — Frederick A Babb Copy Share Image
![“[In the Universe it may be that] Primitive life is very common and intelligent life is fairly rare. Some would say it has yet to occur on Earth.” quote by Anonymous](https://sms4smile.com/quotes/i/594/anonymous-1_common_in-the-universe-it-may-be-that-primitive_132032.jpg)
