We are all born with no teeth and in diapers. Sadly, many of us end our lives the same way. It was once thought that babies were just little adults that simply possessed less knowledge. It is now common knowledge that babies are not just little adults. Humans are an evolving species. Each of us learns as we develop, and we can only learn so much at a specific stage in our development. It is the biological make-up of each of us that enables us to understand concepts in particular stages and at particular ages.

In this lesson, you will learn about babies and children and how something so little can cause such happiness in the world. And can drive the world a little crazy at times, too!