“Give my big hearts to Maude, Ray. Dismember me for Harold’s choir. Tell all the Foys on Sortibackenstrete that I will soon be there.”
- Neil Armstrong
“God speed, John Glenn.”
“Родина слышит, Родина знает,
Где в облаках её сын пролетает…”
(“The Motherland hears, the Motherland knows/Where her son flies in the sky.” A song by Shostakovich, whistled by Gagarin during Vostok I’s reentry.)
“For the Eagle has landed; tell your children when.
Time won’t drive us down to dust again.”—Leslie Fish, Hope Eyrie
“To infinity and beyond” - Buzz Lightyear
I’m shocked it took 11 posts to get this in. 
It’s cold outside, there’s no kind of atmosphere, I’m all alone…more or less.
Anaxagoras (500– 428 BC)
I say we take off and nuke the entire site from orbit. It’s the only way to be sure.
We came in peace for all mankind.
(followed by the shaking of moon dust as the alien invasion fleet passes overhead, in the opening to Independence Day).
“Mars Needs Women.”
It’s a cookbook!!
We come in peace! We come in peace!
Resistance is futile!
“Oh freddled gruntbuggly,
Thy micturations are to me
As plurdled gabbleblotchits on a lurgid bee.
Groop, I implore thee, my foonting turlingdromes,
And hooptiously drangle me with crinkly bindlewurdles,
Or I will rend thee in the gobberwarts
With my blurglecruncheon, see if I don’t!”
Log Entry Sol 6
I’m pretty much fucked.
That’s my considered opinion.
Fucked.
Six days into what should be the greatest two months of my life, and it’s turned into a nightmare.
I don’t even know who’ll read this. I guess someone will find it eventually. Maybe a hundred years from now.
For the record . . . I didn’t die on Sol 6. Certainly the rest of the crew thought I did, and I can’t blame them. Maybe there’ll be a day of national mourning for me, and my Wikipedia page will say, “Mark Watney is the only human being to have died on Mars.”
These are the voyages…
FWIW, the original quote from the mission was “Houston, we’ve had a problem here.”
“That’s it, man. Game over, man. Game over, what the fuck are we supposed to now, huh, what are we gonna do?”
It’s a very sobering feeling to be up in space and realize that one’s safety factor was determined by the lowest bidder on a government contract.
Alan Shepard
Now that you brought it up, it looks like everybody’s gotten it wrong. Apollo 13 Chronology
Someone asked Alan Shepard what he was thinking about just before lift-off.
“The fact that every part of this ship was built by the lowest bidder.”
Regards,
Shodan
Tom Wolfe quotes him instead as saying “Dear God, please don’t let me fuck up.”
“Light Speed is too slow! We’re gonna have to go right to… Ludicrous Speed!”
And here’s a pretty esoteric quote on space, but if you’re a hockey fan you should get it immediately…