Mars

“His mind could fixate on a problem like that — anything, really — and not let go. As if controlling one element of his world would keep him from ruin. It was a bad habit that blinded him to other things that could harm him. A tendency towards obsession was hardwired into his brain and would likely be his undoing if he couldn't learn to outsmart it.”
― Suzanne Collins, The Ballad of Songbirds and Snakes