The one thing we all undergo at some point or another is a childhood. And after that, every belt-notch year leading up to a fully-realized adulthood. As an adult, we often think of nothing but our youth; what we did right or wrong, or might have done differently. In youth, we didn't cherish time as we do now because we had no concept of it. This is a trope deeply imbedded in humanity and a facet of the human condition. Many an author has written a novel or poem about it. And many a musician, as well, has written a song about it. Here you have a list of those songs in your music library.