"It's pretty easy, actually. Apparently, if you shrink time, you can expand space, or something like that."
— Ponder Stibbons, Making Money
"It's a lot roomier in here than it looks from the outside. Some would even argue that it's impossible."
— Sheen, Planet Sheen
Look at my girl. Look at her go. BIGGER ON THE INSIDE! See, House, that's your problem. Size of a planet, but on the inside you are just! So! Small!
— The Doctor, "The Doctor's Wife"
Nice use of space.
— Wonder Woman on Doctor Fate's tower, Justice League