The Face of Boe, Hame and others in “Gridlock”

Everything has its time. You know that, old friend, better than most.

The legend says more.

Don't, there's no need for that.

It says that the Face of Boe will speak his final secret to a traveler.

Yeah, but not yet; who needs secrets, eh?

I have seen so much, perhaps too much. I am the last of my kind, as you are the last of yours, Doctor.

That's why we have to survive, both of us. Don't go.

I must. But know this, Time Lord: You are not alone. [He dies.]