[gwern]

Yes, he's not really clear that 'I am quitting so I can get a better-paying job to save up for becoming a teacher', but if you parse the paragraph carefully and pay attention to the 'but's, it's what he's saying:

> I am leaving because I have always wanted to teach. Doing so comfortably requires that before then, I need to put away a lot of money to support myself when I’m getting paid a truly ludicrous wage. It is true that I am paid below market value, but not so significantly as folks on the internet assume. I live quite comfortably on this salary, and while it’s less than I could make elsewhere, it’s not out of the bounds of reasonable expectation. But I want to accelerate my plans for teaching. So here we are. I love this company, but I have goals that won't be fulfilled by working there, so it's time to move on.

'I live comfortably... but I want to accelerate my plans for teaching'; he's not quitting to teach, he's quitting to 'accelerate my plans' ie. save up a bunch of money, which implies getting a better-paying job which is not itself teaching.