Nike says that if we invest in a girl, she will do the rest.

And then this amazing, inspiring video explains their logic, called The Girl Effect.

Check it out.

And, they’re backing up their idea with dollars.  The Nike Foundation has joined with the NoVo Foundation to invest $100 million in girls. 

Because investing in girls, they think, is the best way to change the world. 

So why not just do it?