"I've assumed every shape in this room."
[Odo's quarters]
(The founder is checking out the driftwood in the room.)
ODO: To become a thing, is to know a thing.
FOUNDER: To assume its form is to begin to understand its existence.
ODO: You tried to teach me that when I visited our homeworld.
FOUNDER: I remember.
ODO: I didn't understand what you meant by it at first, so when I returned the station, I got rid of all the furniture I used to have in my quarters and replaced it with these objects. I've assumed every shape in this room. I suppose if it weren't for you, I never would have known the simple pleasure spending time existing as a stone or a branch.