What does that pin on your backpack mean?

Rev. Meg Barnhouse's sermon delivered on August 18, 2019. All-Ages Service. Who are we as UU's? Our children in schools need to know who we are. In their classes we say the 7 principles and the classroom covenants they wrote at the very beginning. This is not a non-denominational church. It is a church with strong roots in Central Europe and in New England. Unitarians shaped this country in mostly good ways. How did Unitarianism take shape?