My 1 wish

If give one wish what would i do? That is such a tough question for me. Part of me wants to be selfish and just wish to be a billionaire, but the other part of me wants to be the good guy and wish for something that would help the world. Honestly if i was only given one and had to choose right there on the spot i'd probably say the billion, but as i sit here and think of how selfish that sounds i want to say i'd wish for poverty to not be a problem. I don't know if i could do that though.