Space Quote - December 2007:

"...As we leave the Moon at Taurus-Littrow, we leave as we came and, God willing, as we shall return, with peace and hope for all mankind. Godspeed the crew of Apollo 17."

- Gene Cernan, last astronaut to walk on the moon, 1972.

Space Quote - January 2007:

"Congratulations, the road to the stars is now open."

- Sergei Korolyov (1906-1966),
father of the Soviet space program,  upon the launch of the first artificial satellite.

Space Quote - September-December 2006:

"...we must pick ourselves up again and press on despite the pain. Our nation is indeed fortunate that we can still draw on an immense reservoir of courage, character and fortitude - that we are still blessed with heroes..."

- President Ronald Reagan, following the Challenger disaster, 1986.

More quotes here.