- Tegan Jovanka: When did you meet the Silurians, Doctor.
- The Doctor: A long time ago. I let them down then; seems I'll do so again.
- Tegan Jovanka: Are they hostile?
- The Doctor: They're honorable. All they ever wanted to do was live in peace.
- Commander Vorshak: Preston, deploy the duty guards to cover all the other air locks.
- The Doctor: Let me go with them. I know the Silurians. If I can talk to them, we may be able to avoid bloodshed.
- Commander Vorshak: You can try, but remember we have no reason to trust you.
- Commander Vorshak: [to Bulic] Watch him. The first sign of treachery, kill him.