"“This I choose to do,” she croaked, her breath leaving little clouds in the air. She cleared her throat and started again. “This I choose to do. If there is a price, this I choose to pay. If it is my death, I choose to die. Where this takes me, there I choose to go. I choose. This I choose to do.” It wasn’t a spell, except in her own head, but if you couldn’t make spells work in your own head, you couldn’t make them work at all."
January 1, 1970
https://en.wikiquote.org/wiki/Discworld