Ignorant power is a bane! - Ursula K. Le Guin

But you must not change one thing, one pebble, one grain of sand, until you know what good and evil will follow on that act. The world is in balance, in Equilibrium. A wizard's power of Changing and Summoning can shake the balance of the world. It is dangerous, that power...It must follow knowledge, and serve need.

I doubt that the imagination can be suppressed. If you truly eradicated it in a child, he would grow up to be an eggplant.

The only thing that makes life possible is permanent, intolerable uncertainty: not knowing what comes next.