I definitely slacked off a lot in school at all levels, ending up with very mediocre grades in high school, college, AND grad school. Somehow, I lucked into some excellent schools--both college and law school--and job opportunities, even outside my fields of concentration. And I would definitely say that, above all else, having a recognized school name on my resume helped a lot in opening doors that might not otherwise be open. That is, I was able to leverage, say, an 10 points worth of effort in law school to get a job that would have required 100 points worth of effort from someone that didn't go to the kind of schools that I did. Does that make me smarter, or more likely to succeed? Not at all, but it has made everything a lot easier. So while I might not be able to add much to "was the hours worth studying worth it", I will definitely add to the chorus that going to a good school is definitely worth it, at least in the US and in Asia (the OP, I take it, is from Switzerland, and I understand things work a little differently in Europe). Not to say that you can't make it big with a run-of-the-mill diploma, but having that school name definitely makes the doors a lot more open and the roads a lot easier to travel. And I do often regret that I was not diligent enough to (1) get myself into even better schools and/or (2) make the best out of the situation in which I found myself. But in the end, it's all about what makes you happy, man. If being a Starbucks barista and working 35 hrs/wk and chilling the rest of the time is what makes you happy (and there's nothing wrong with that), then the hours invested probably won't have been worth it. And in fact, I'm sure this is a choice that a lot of people, especially in the US, make all the time.