My most important back-to-school supply doesn't fit in a backpack, and it can't be ordered online. It's as essential as a pencil, but unlike a pencil, no technology can replace it. In a sense, like a fresh box of crayons, it can come in many colors. Better than the latest gadget, it's possible to equip every student with it, and even better, when we do, it can transform our world.
It's actually a "muscle" I've been working on all summer. It's empathy.