“Make new friends, but keep the old; one is silver, and the other’s gold.” That’s the Girl Scout song my Brownie troop chanted at every meeting when I was a child in the 1950s. I loved that message and still do. Sometimes, my Brownie friends and I, clad in little brown dresses pinned with gold insignias and our heads topped by brown beanies, would compare notes on who was a gold friend and who was silver.