"That is a potion bottle, not a Klein bottle!"

"That would be an interesting topological exercise."

"You fall down the stairs."

"Talking to yourself is a bad habit for a dungeoneer."

"You decide not to force the issue."

"You identify this as an identify scroll."

"The biggest obstacle in NetHack is perhaps your mind."

"After the Creation, the cruel god Moloch rebelled against the authority of Marduk the Creator. Moloch stole from Mard…"

"You fall into a pit! How pitiful. Isn't that the pits? You land on a set of sharp iron spikes! --More-- The spikes we…"

"The shrieker shrieks."