not at any price
Under no circumstances or in no manner, regardless of potential gain or benefit. Not at any price would I ever work for a faceless corporation like that—I'd lose my mind sitting behind a desk all day!
not at ˈany price
used to say that no amount of money would persuade you to do or sell something: ‘What about joining the army?’ ‘Not at any price. That’s the last thing I want to do.’