About This Quote

About Carl Sagan

Carl Sagan was a 20th-century American scientist and science communicator. Carl Edward Sagan was an American astronomer, planetary scientist and science communicator. Initially an assistant professor at Harvard, Sagan later moved to Cornell, where he was the David Duncan Professor of Astronomy and Space Sciences and directed the Laboratory for Planetary Studies. Read more on Wikipedia →

Themes

  • Philosophy — Deep thoughts on existence, knowledge, and the nature of reality
  • Religion — Exploring belief systems, worship, and spiritual practice
  • Science — Discovery, inquiry, and the wonders of the natural world

More quotes by Carl Sagan

“The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself.”
— Carl Sagan
connectedness evolution life origin-of-life

“A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism.”
— Carl Sagan
life organized-religion religion science

“We are star stuff harvesting sunlight.”
— Carl Sagan
carl-sagan humans life science

“We make our purpose.”
— Carl Sagan
existence life purpose

“Look again at that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggre...”
— Carl Sagan
astronomy inspirational science space-travel

“If it can be destroyed by the truth, it deserves to be destroyed by the truth.”
— Carl Sagan
destruction inspirational truth
View all quotes by Carl Sagan →

Related Quotes

“As some people turned to religion for comfort, so, Highsmith wrote in her notebook in September 1970, she took refuge in her belief that she was making progress as a writer. But she realised that b...”
— Andrew Wilson, Patricia Highsmith,
belief comfort illusion illusory

“Its important that what thoughts you are feeding into your mind because your thoughts create your belief and experiences. You have positive thoughts and you have negative ones too. Nurture your min...”
— Roy T. Bennett
belief compassion empathy experiences

“Reason, Observation and Experience the Holy Trinity of Science have taught us that happiness is the only good; that the time to be happy is now, and the way to be happy is to make others so. This...”
— Robert G. Ingersoll
belief content experience happiness

“The race is now on between the technoscientific and scientific forces that are destroying the living environment and those that can be harnessed to save it. . . . If the race is won, humanity can e...”
— Edward O. Wilson
biology climate-change e-o-wison earth-changes

“None can reply - all seems eternal now. The wilderness has a mysterious tongue, which teaches awful doubt.”
— Charles Darwin
biology nature

“When Mother Nature speaks, even the Gods hold silence.”
— Abhijit Naskar
biology brainy-quotes brainy-quotes-life-lessons evolution

“I have little use for religion as it is practiced, or for astrology, or for belief in witchcraft or omens of good or ill-luck. I think they all stem from some insufficiency in mens minds, perhaps f...”
— Winston Graham, The Black Moon
philosophy religion ross-poldark spirituality

“It is only the innocent mind which knows what love is, and the innocent mind can live in the world which is not innocent.”
— Jiddu Krishnamurti
philosophy spirituality

“So if you can look at all things without allowing pleasure to creep in - at a face, a bird, the colour of a sari, the beauty of a sheet of water shimmering in the sun, or anything that gives deligh...”
— Jiddu Krishnamurti
philosophy spirituality