Principles without practices are empty shells, whereas practices without principles tend to be implemented by rote, without judgement. Principles guide practices. Practices instantiate principles. They go hand in hand.

— Jim Highsmith, Agile Project Management

Once you own a tool, the path of least resistance is to do whatever the tool provides regardless of whether it meets the team’s needs.

— Robert C. Martin, Clean Agile

here is, unfortunately, a belief (typically among those who have never built production-quality software) that constructing and maintaining software solutions is easy. Often this belief emerges from those who have never seen the software solution to a problem of any magnitude, either because they have dealt only with toy problems (this is a problem for many academics and their students)

— Robert L. Glass, Facts and Fallacies of Software Engineering

It’s great to be proficient at a lot of things. But it’s also great—and arguably more human—to know your limitations

— Peter Hollins, Mental Models

R. A. Bjork’s concept of desirable difficulty. More difficult retrieval leads to better learning, provided the act of retrieval is itself successful.

— Scott Young, Unlearning