I’m 27. I do not think about the past and do not regret it too much. But sometimes I would like to have learned a little more of other things. Things I have learned over the past years. It would be great to have self-development lessons in courses at school..

But I still think it would be nice to highlight a few hours of all these activities on some German lessons in self-development. Perhaps only one hour a week in high school. This could be useful for many students and on a larger scale for our whole society.

So here are 10 things that I would have liked to learn more about in school (or just known about).

1) Rule 80-20 or the Pareto principle.

80 % of all income received bring only 20% of your activities. From this we can conclude that much of what we do doesn’t really bear income and therefore is not necessary. So many things you do,might not so useful, or even not as important as it might have seemed to be.

You can just throw engaged – or severely cut back on the time you spend on a huge variety of activities. And if you do, you will have more time and energy on what really brings results, happiness, satisfaction, and so on.
http://www.tutorz.com/blog/2014/04/10-things-which-would-be-great-to-have-being-told-at-school/