Whatever you think your children need—deserve—from their school experience, assume that the parents at the nearby public housing complex want the same. No, don’t just assume it. Do something about it. Send your kids to school with their kids. Use the energy you have otherwise directed at fighting to get your daughter a slot at the competitive private school to fight for more computers at the public school. Use your connections to power and money and innovation to make your local school—the one you are now sending your child to—better. Don’t just acknowledge your liberal guilt—listen to it.