> Being fluent in the core language of mathematics (basic logic I have been programming for a living for 15 years, I'm most definitely not as good a programmer

> Being fluent in the core language of mathematics (basic logic I have been programming for a living for 15 years, I'm most definitely not as good a programmer as OP is, but the least I can do is double-vouch for that advice. I first heard it a little over 20 years ago, at the end of my first calculus class at uni. After scaring us, his students, about all the things that we will have to learn during the next semester I remember the professor telling us that we should be really learning what the NOT, OR and AND logical operators really do and stick that piece of information firmly in our heads, because that is really important for our jobs. He also bitched a little about our older colleagues for not remembering that stuff anymore (and causing different computer bugs because of that) and I remember saying to myself: "how stupid can one be in order to un-learn this stuff? It is easy!". Like I said, 20 years have passed since then and I found out that even though it's easy lots of people seem to forget how basic logic actually works when it comes to programming.