This talk by Rich Hickey had a tremendous influence in how I approach my work:
https://youtu.be/f84n5oFoZBc

His Hammock Driven Development is my absolute favorite when it comes to work principles in programming/engineering. It also the one that is the hardest to explain to most PMs and leads because it can look like you are slacking off while others are producing hundreds LOCs. That you'll write better, less error prone code that won't need as much QA iterations is something you first have to prove to them but to me, it's well worth the effort.

If you have 40 minutes of time, do yourself a favor and watch the video. Maybe it'll have as much influence on you as it had on me 😃