All things are possible to those who believe, yet more to those who hope, more still to those who love, and most of all to those who practice and persevere in these three virtues.
~ from PRACTICING THE PRESENCE by Brother Lawrence
For some birds, songs are learned by listening to their parents and neighbors during the first year. For other birds, songs are hardwired -- the music is scored in their brains from the beginning. For mockingbirds, singing is a lifetime of choir practice and talent shows, picking up new tunes and modifying old ones.