Be the change you want to see in the world

Be the change you ~~want to~~ see in the world.

"I tell the future" "Okay, tell me mine" "Soon... You will go to Rome." "But I'm in Rome." "Do I lie?"

Ah yes, the self-fulfilling prophet.

/*fanning the flames* "I don't 'want' this, I just see it."

What's that story with the Wizard who cursed a family to die by thirty then broke into their homes to kill them when they turned 30?

The Dune school of divination

 The actual story is called "The Alchemist"

In Gym of the Romantic Journey, there was a character who could see the future, and then bring it about. Once he shot someone with a paintball gun because someone was going to wipe him off with a paperclip, and they'd look silly if he didn't have paint on him. And once he rushed into a room where a fire started, and then was relieved that he didn't have to be the one to start it.

-Isaac Asimov, Foundation (1951)