What was the most important lesson from university?

Experts know nothing... Most of the time, they don't even know just how dumb they sound...

And most importantly: It's not because they were born dumb. It's just one bad decision compounding on another amplified by life of doing a job you hate. For instance, imagine that I am going to a finance school hoping to learn about IT.

They outright lied about what will I learn and if I ever finish that school, most of the knowlage will be useless in my field.

So, (hypotetically, if I weren't able to find an IT job), I would become an ECONOMY EXPERT. Just another talking head with 0 real interest in the field.