Another important point in this book is to keep codes human-readable. It’s easy to write machine-understandable codes, but costs much more efforts to make it easy to understand and transfer among humans. Lots of “bad parts” listed by this book are simply because they “mess codes up” more than the benefits they were designed for. An additional point is the most dangerous features are those who bring in hard-to-find bugs, not those notorious features that everyone will pay attention to.
This book is pretty short, but as the author says, it worths reading time to time.