One day you have the ability to send one 30 second message that can be heard by everyone in the world at the same time. It is translated to the languages in their corresponding regions.
What do say?

Acurious child asked his mother: “mommy, why are some of your hairs turning grey? ” the mother tried to use this occasion to teach her child: “it is because of you, dear. every bad action of yours will turn one of my hairs grey! ” the child replied innocently: “now i know why grandmother has only grey hairs on her head.”