"People get really gung-ho about reusing code and creating shared libraries, but reusing code is actually bad most of the time. You should strive to only depend

"People get really gung-ho about reusing code and creating shared libraries, but reusing code is actually bad most of the time. You should strive to only depend on things that you can reasonably expect to not change" -- things changing is one of the main reasons you want to share code.