"I'm sorry. I didn't have long to plan this. A few milliseconds really. I hope it worked out."

- Halo Infinite

"You created Cortana, Doc, and now you're throwing her out of the airlock with these accusations."

- Halo 5

"Nothing... nothing ends. My death will inspire a thousand others... Tell them... I died well."

- Halo Infinite

"Get up, SO I CAN KILL YOU AGAIN!"

- Halo 2

"But Cortana...these coordinates are underground."

- Halo Reach

"You heard from Gunny?"

- Halo 3: ODST

"Copy that! Get our people out of here... I'm blowing the core."

- Halo Wars

"Get word to Earth that trouble is coming. Cortana and I will do what we can back here."

- Halo 4

"Disruption bomb out!"

- Halo Wars

"We're outnumbered here, Chief. A few thousand to one."

- Halo 5

"The missions change. They always do."

- Halo Infinite

"Mayday! Mayday! This is the captain of the UNSC Infinity. Unknown entity has seized control of our ship! We're without power, and on a collision course with an unidentified Forerunner planet!"

- Halo 4

"Tell me, 117. When you tear Cortana from the Domain and crush her in your gauntleted fist... will you feel remorse? Will you even understand you have refused?"

- Halo 5

"Just promise me one thing: Whatever happens, save him. He needs you. You're all he has."

- Halo Infinite

"The object we found, I'm going to try and land the Autumn on it."

- Halo Combat Evolved

"If you understood what she has become, you would not speak of such juvenile concepts as home."

- Halo 5

"Meridian's a backwater. If she's active, what's she doing so far out on the frontier?"

- Halo 5

"Blue Team, report. ...Sierra 117 to Blue Team, report. ...Sierra 117. Does anyone copy?"

- Halo 5

"It worked. You did it. Just like you always do."

- Halo 4

"Wake up, Chief. I need you."

- Halo 4

"No thanks to your driving, yes."

- Halo Combat Evolved

"This is Spartan Bonita Stone. Recon specialist. Her vitals have been offline for nearly a month."

- Halo Infinite

"Cortana's no longer a threat. And now she's going to help us stop the Banished."

- Halo Infinite

"Protocol dictated my response! She had the Activation Index. And you were going to destroy my Installation. You did destroy my Installation. Now I have only one function: to help you, Reclaimer, as I always should have done."

- Halo 3

"Can you guess?"

- Halo 3

"No, Arbiter! The Great Journey has begun. And the Brutes, not the Elites, shall be the Prophets' escort!"

- Halo 2

"Of course that's all Harvest is today... it's hell down there. But it's ours again."

- Halo Wars

"Buck? Who knows if he can hear me but... I'm sorry. I should have told you more about this mission, more... about everything."

- Halo 3: ODST

"Spartans? Thank God, we have to get out of here."

- Halo Wars 2

"117, stand down! Sir, you are absent without leave. This is your one chance to come home peacefully."

- Halo 5