During the debate in Maryland's House, I joined same-sex marriage supporters outside of the chambers who were anxiously awaiting the vote. I met two moms and their 4-year-old son Will. After standing for hours, Will was tired and seemed a bit uninterested. I could only imagine how hard it would be to understand the complex discussions as a 4-year-old. But the next day I saw a photo of Will and his family taken right after the House voted in support of marriage equality. His little face was lit up with joy, and he was cheering as his moms hugged him with the love that only a mother can provide. Will may not have understood the debates, but his smile after the vote proved one very important thing: even a 4-year-old knows the value of human dignity.