Thread by @SteveStuWill

"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... on a mote of dust suspended in a sunbeam."

–Carl Sagan (born OTD in 1934)

"The Earth is a very small stage in a vast cosmic arena. Think of the rivers of blood spilled by all those generals and emperors so that, in glory and triumph, they could become the momentary masters of a fraction of a dot."

–Carl Sagan (born OTD in 1934)

"It has been said that astronomy is a humbling and character-building experience."

–Carl Sagan

https://twitter.com/SteveStuWill/status/1116444210662502400

"The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of star stuff."

–Carl Sagan

"We are starstuff pondering the stars; organized assemblages of ten billion billion billion atoms considering the evolution of atoms; tracing the long journey by which, here at least, consciousness arose."

–Carl Sagan

"What an astonishing thing a book is... [O]ne glance at it and you're inside the mind of another person, maybe somebody dead for thousands of years... Books break the shackles of time."

–Carl Sagan

Carl Sagan explains how the Ancient Greeks, using reason and math, figured out that the Earth isn't flat, more than 2,000 years ago. Amazing.

Full video here: openculture.com/2017/03/carl-s…

"We are like butterflies who flutter for a day and think it is forever."

–Carl Sagan (1934-1996)