It is time of remarkable brain development, but also an extremely vulnerable time for young children, especially in the developing world, where a child has a four in ten chance of living in extreme poverty and 10.5 million children under age of 5 die from preventable diseases every year.
And so what we can do, and must do, is to devote much more of our time and effort to thinking about development in the developing world because that's an issue of peace which affects us directly.