There are things you know that you know and there are things that you know that you don't know. They're OK.
The problem is with the things that you don't know that you don't know!
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There are things you know that you know and there are things that you know that you don't know. They're OK.
The problem is with the things that you don't know that you don't know!
Tongue twisters
Peter Piper
Pepper
Pickled
Sauerkrout
Bratwurst
Mititei
Bangers
Mash