“It's always useful to know as much as possible about your enemy.” — The Dark Knight by Dennis O'Neil Copy Share Image
“But it's always useful to know where a friend-and-relation is, whether you want him or whether you don't.” — Anonymous Copy Share Image
“When you find yourself at yet another crossroads, sorting out your best next step, it’s as useful to know what you don’t… — Kate Bolick Copy Share Image
It was never shameful to learn from any teacher things that are useful to know. — Leon Battista Alberti Copy Share Image
