Sticks and stones can do damage, but not names. They cannot hurt you, according to this piece of playground wisdom. While that may have worked on the playground, it doesn't work in real life. Names can and do hurt, sometimes more deeply than sticks or stones. They can also help.
Names can bring honor and dishonor.
Wars have been started and marriages ended over names. Expectant parents agonize over what to name their child. Some people even agonize over what to name their pets. In knowing a person's name, we know something important. To have a name is to have an identity.