All The King's Men

The full quote: "The idea had been growing in my brain for some time: the true force. All the king's men can not put it back together again. "

It is from the nursery rhyme about Humpty Dumpty

Humpty Dumpty sat on a wall
Humpty Dumpty had a great fall.
All the King's horses and all the King's Men
Can not put Humpty together again.

Some things are not reversible (second law of thermodynamics, entropy always increases). You can not decrypt an egg (an egg is HD) and the thought can not get rid of.

In the rhyme king's men were expected to restore a broken egg, which we all know, is an impossible task.

However, he is convinced that the present problem are a solution, provided that corrective actions are taken, namely, whether "real force is applied.