This post is all about whether dependencies are expensive or valuable to a software project (the answer is “yes” in a lot of cases). It was motivated by Benefits of dependencies in software projects as a function of effort by Eli Bendersky.
OOP the Easy Way
Object-Oriented Programming the Easy Way: a manifesto for reclaiming OOP from three decades of confusion and needless complexity.APPropriate Behaviour
APPosite Concerns
FSF