"Doctor," said Archer, "I want to speak to you about Starfleet."
The Doctor licked his lips. "I'm afraid I can't do whatever it is you're about to ask."
"You would be a fantastic asset to our exploration program," Archer insisted. "Your experience, your advice, the things you could teach us even in an unofficial advisory capacity -"
"No," said the Doctor. "I can't do that. I cannot become known to your civilization. And I can't explain why."
"Doctor -" Archer was astounded. "You are exactly what we came out here to discover! You can't just drop in for a day and a half and leave! T'Pol, tell him."
"He is right, Captain," said T'Pol. "We are not ready for the power he represents, not even Vulcan. He must be allowed to go, and no mention of him must appear in official Enterprise records, now or ever. I must insist on this with all the authority of the planet Vulcan."
Archer turned an incredulous look on her. But he was too exhausted to fight. "All right, all right! Have it your way. This time." He started to dismiss them, then pointed a finger at the Doctor. "But if we meet again, we'll hash this out. T'Pol, show them back to their ... TARDIS." He waved them away and the Vulcan led them out into the ship's corridors.
"T'Pol," the Doctor asked as she led him and Padme along, "why did you support me against Captain Archer?"
"I can't tell you that," T'Pol said.