"This is string containing an embedded \"quoted\" string"
Then I have to think about whether or not the system I'm going to send that string to is going to "helpfully" remove the backslashes, in which case I need to write:
"This is a string containing an embedded \\"quoted\\" string"
God help you if you want to go two levels deep.
All this horrible complexity could have been avoided if we could just write:
«This is a string containing an «embedded» quoted string»
Alas.