“A night in space can last a long time … or maybe it never ends.”

“Follow the plan until it goes to shit, and then kill everything that isn’t human.”

“Good units walk a thin line between indiscipline and ineffectiveness. Ignore the rules too often and you’ve got a mob, but enforce the rules too strictly and you’ve got a herd.”

“Because if I ever get nailed, I don’t want you running out to get the same medicine. Believe me, if it’s you lying out there, I’m gonna make sure you’re alive before I go.”

“It’s a lot cleaner when Command kills you on purpose . . . than when they do it by accident.”

“Never diagnosed the enemy before.”

“Some of the things that beat the shit out of you . . . can beat the bullshit out of you too.”

“Food’s the killer. The clock starts as soon as the troops are on the ground. You wouldn’t believe how fast they consume what they’re carrying, and then … if I don’t get them more, if I don’t find them more … they die.”

“I’ve had a lot of lieutenants over the years, and all the good ones were sick, sick individuals. You might be the best one yet.”

“Don't let 'em see they killed you!”

“Therm-bombs! Drop ’em right on us! I been roasted before—it’s nothing!”