I like writing code. I like building product. I like making things that people like.
Cultures that don't laugh at themselves are cults.
If everything you do works, then you're not taking many risks and probably aren't innovating either.
Google is about information and computers and making things really fast. Facebook is about the sharing and connections. These missions give these companies direction and motivation.
Email is not going to disappear. Possibly ever. Until the robots kill us all.
The intrinsic path to success is to focus on being the person that you are, and put all of your energy and drive into being the best possible version of yourself.