...your mind has lost its KEEN edge.
The Big Bang Theory Season 4, Episode 22
- Keen observation, goodbye.
- You see where you went wrong, don't you?
The Big Bang Theory Season 1, Episode 12
Our fathers are both
rather KEEN on the prospect.
Game of Thrones Season 4, Episode 2
You have a KEEN insight
into the human heart,
The Big Bang Theory Season 5, Episode 13
You have a KEEN military mind, Pod.
Game of Thrones Season 6, Episode 8