Quotes & Sayings About Intelligent Life On Other Planets

There are 400 billion stars out there, just in our galaxy alone. If just one out of a million of those had planets, and just one in a million of those had life, and just one out of a million of those had intelligent life, there would be literally millions of civilizations out there. — Jodie Foster

It must be a very dour and pessimistic astronomer indeed who seriously doubts that there must be countless numbers of intelligent civilizations scattered throughout the universe on other planets which are orbiting around other stars. An attitude which asserts that man is the only intelligent life form in the universe is intolerably arrogant today ... anyone who holds such an opinion today is, fortunately for those who like to see some progress in human conceptions, something of an intellectual freak equivalent to a believer in the Flat Earth Theory. — Robert K. G. Temple

For no one knows what lies under the sands of the world's great deserts. No one knows how many times poor Earth has reeled under blows from comets, has lost or captured moons, has changed its air, its very nature. No one knows what has existed and has vanished beyond recovery, evidence for the number of times man has understood and has forgotten again that his mind and flesh and life and movements are made of star stuff, sun stuff, planet stuff; that the sun's being is his, and what sort of events may be expected, because of the meshings of the planets - and how an intelligent husbanding of humanity's resources may be effected based on the most skilled and sensitive of forecasting, by those whose minds are instruments to record the celestial dance. — Doris Lessing

If the joy of scientific discovery is one-shot per discovery, then, from a fun-theoretic perspective, Newton probably used up a substantial increment of the total Physics Fun available over the entire history of Earth-originating intelligent life. That selfish bastard explained the orbits of planets and the tides. — Eliezer Yudkowsky

[My study of the universe] leaves little doubt that life has occurred on other planets. I doubt if the human race is the most intelligent form of life. — Harold Urey

Intelligent life on other planets? I'm not even sure there is on earth! — Albert Einstein

Maybe the search for life shouldn't restrict attention to planets like Earth. Science fiction writers have other ideas: balloon-like creatures floating in the dense atmospheres of planets such as Jupiter, swarms of intelligent insects, nano-scale robots and more. — Martin Rees

Even so, to an astonishing extent the government was successful in suppressing the truth. It's a pretty amazing accomplishment, when you think about it. The average American knows there are millions of planets in the universe. He also believes it ridiculous to even consider the possibility that one of those planets might be able to support life intelligent enough to get here. . . The idea will take its rightful place in history one day, next to the flat Earth society and those afraid of falling off the edge." A — Victor West

(1) the number of stars in the Milky Way that survive sufficiently long for intelligent life to evolve on planets around them; (2) the average number of planets around each of these stars; (3) the fraction of these planets with conditions suitable for life; (4) the probability that life actually arises on these suitable planets; and (5) the chance that life on such a planet evolves to produce an intelligent civilization, by which astronomers typically mean a form of life capable of communicating with ourselves. — Neil DeGrasse Tyson

I believe that there may be intelligent life on other planets. — Pat Buckley

Personally, I don't think there's intelligent life on other planets. Why should other planets be any different from this one? — Bob Monkhouse

Coming to grips with the reality that our planet is not the only one harboring intelligent life the universe. — Franklin D. Roosevelt