Be careful those walls you build up, for you may need to walk through them someday be careful those bridges you burn, for you may need to cross them someday AM You don't know what your future holds, a lot of pain and a lot of soul AM you don't know what your future holds, a lot of rock and a lot of roll DM You don't know that you can lose it all when those walls and bridges come tumbling down when those walls and bridges are nowhere to be found Be careful the roads you walk down, for you may be going the wrong way be careful the doors that you close, for you may need to open them someday AM You don't know what your future holds, a lot of pain and a lot of soul AM you don't know what your future holds, a lot of rock and a lot of roll DM You don't know that you can lose it all when those walls and bridges come tumbling down when those walls and bridges are nowhere to be found