This poignant song about not really knowing about something until you experience it was written two of the more eloquent songwriters in Nashville: Steve Azar
and Radney Foster
. Azar told Songfacts: "'You Don't Know A Thing' was our second effort. The last verse about the baby, that was a personal deal to Radney. Not as far as the child being sick, but… I won't go into detail, but it was definitely affected. And then with me having kids and then having to deal with some of that, I totally got that. And it sort of glued the song together. I remember when it was all said and done and we got through with it, we looked at each other and said, 'Whoa!' I really love that song. As a songwriter you don't love
a lot of your songs. You just appreciate
'em. But I love that song. And it was another step forward as a songwriter for me. And also being around Radney was educational to say the least. It was moving and spiritual and everything that goes with it. It was cool."