"I'm the first person to be alone on an entire planet."

"If the oxygenator breaks down, I'll suffocate. If the water reclaimer breaks down, I'll die of thirst. If the hab bre…"

"In the face of overwhelming odds, I'm left with only one option: I'm gonna have to science the shit out of this."

"I've got to make a lot more water. The good thing is, I know the recipe: You take hydrogen, you add oxygen, and you b…"

"[after trying to make water by burning hydrogen] So... I blew myself up."

"Good news: I may have a solution to my heating problem. Bad news: it involves me digging up the radioisotope thermoel…"

"I don't want to come off as arrogant here, but I'm the greatest botanist on this planet."

"I've been thinking about laws on Mars. There's an international treaty saying that no country can lay claim to anythi…"

"They say once you grow crops somewhere, you have officially colonized it. So, technically, I colonized Mars. In your …"

"Hi, I'm Mark Watney and I'm still alive... obviously."