Star Trek: Deep Space Nine1993

Odo:
You know, if I were still a Changeling, I could've shapeshifted into a Vorian pterodactyl and flown that damn transmitter to the top of the mountain hours ago.

Quark:
You're the one who wanted to be a Solid.

Odo:
I never wanted to be a Solid.

Quark:
Oh, please. I used to see you coming into the bar, watching Morn eat, eyeing my customers, as they gambled and flirted with the dabo girls, wishing you were one of them - not to mention your platonic friendship with a certain Bajoran Major.

Odo:
[laughs disparagingly] If that's the kind of psychological insight you dispense with your drinks, it's a wonder you have any customers.

Quark:
Deny it all you want, but the fact is, your people gave you what you wanted. You're one of us now, and I can finally sit on a chair and know with absolute certainty that it isn't you.