One Hacker Way by Erik Meijer
In 2014, Internets went loud after Erik Meijer's talk One Hacker Way. I really liked this talk, because it made me think...actually even until today I didn't figure out everything Erik meant. Unfortunately, most of people didn't understand this talk.
In 2015, he gave the same talk again, but the rhetoric was way different. It's more straight forward, and probably more people understood it.
tl;dr This talk is about approach to software engineering, patterns, practices, methodologies, career, and what makes great developer.
Let me know what you think in comments!