Modern science has largely agreed, spending decades outlining all the things that babies couldn't do because their brains had yet to develop. They were unable to focus, delay gratification, or even express their desires. The Princeton philosopher Peter Singer famously suggested that "killing a disabled infant is not morally equivalent to killing a person. Very often it is not wrong at all."
Now, however, scientists have begun to dramatically revise their concept of a baby's mind. By using new research techniques and tools, they've revealed that the baby brain is abuzz with activity, capable of learning astonishing amounts of information in a relatively short time. Unlike the adult mind, which restricts itself to a narrow slice of reality, babies can take in a much wider spectrum of sensation - they are, in an important sense, more aware of the world than we are. Jonah Lehrer
Amen I say to you, unless you be converted, and become as little children, you shall not enter into the kingdom of heaven. (Matthew 18:3)