'Uncontrollable'? 'Employees'? Unbelievable, unimaginative, unsupportable but probably unstoppable.
Your title quote from the Tempest prompts a search of Wikipedia, from which: 'Prospero maintains Ariel's loyalty by repeatedly promising to release the "airy spirit" from servitude, but continually defers that promise to a future date...' and, to take Hamlet out of context (now there's a rarity!): 'The play's the thing...'

Look it's only feeble minds in Cambridge struggling to cope with energy they can't control. I think you could show some more sympathy for them: they need a job and probably wouldn't be employed anywhere that there was vibrancy on the loose.
Imagine: we could give up feeding them too; that might help ensure they were more controllable, and that would make the streets safer for people who find it difficult to live in communities of vigor.

Presumably, these 'uncontrollable' children will be our minders when we are in our dotage. And yet it is deemed to be progress to avoid the danger of them running around now.
It is not the children who worry me as much as present authorities with that kind of thinking. Oh dear!!
Ivan Webb

And this is a state school? Zounds! The Observer doesn't, er, observe a different date for All Fools' Day does it? The blancmange--what a rich metaphor.