The informal education one receives by learning from one's experiences, both good and bad, rather than a formal educational institution. My uncle might not have made it past grade school, but he's learned more from the university of life than most of our professors. A proper education is indeed important, but do not neglect the lessons you receive from the university of life.

To work a full- or part-time job in order to pay for one's tuition. "College," "university," etc., can be used instead of "school." Kate is working her way through college, but paying for classes as she's able to afford them. Your father and I both worked our way through university, so I don't see any reason why you can't do the same.