When a child is born, the entire Universe has to shift and make room. Another entity capable of free will, and therefore capable of becoming God, has been born. In that way, every child's birth is exactly like the birth of a world teacher. Every child born is a living Buddha. Some of them only get to be a living Buddha for a moment, because nobody believes it.
Nobody knows it, and they get treated like they're dumb.
Babies are not dumb. A newborn infant is just as intelligent as your are. When you're relating with him, you should consider that you are relating with a very intelligent being who just doesn't speak your language yet. And you shouldn't do anything gross to him before he learns to speak with you.