Bill Irwin

"Honesty setting: 90 percent."

"Humor setting: 75 percent."

"I have a cue light I can turn on when I'm joking, if you like."

"Maybe you can use it to find your way back to the ship after I blow you out the airlock."

"My chassis is too heavy for the rocket stage."

"They have another one waiting for me in orbit."

"If you try to turn me into a combine harvester, I'm going to--"

"It will allow us to talk to earth, even on the far side of the wormhole."

"It helps me calibrate my fine motor control."

"It's difficult to gauge mass in zero gravity."

"Would you like me to make a joke?"

"I orbited the black hole seven times before I hit the second wormhole."