The book is about really not giving a f**k about some issues because there is way too much stuff, so many opportunities, and so much to do, with so little time to do it all. If you decided to pay attention to all the rubbish flying around out there, you find out that you are spread out too thin, and you will achieve nothing in life. You will be so stressed out and have nothing to show for it at the end of the day. The author says that you should let somethings just slide and pay little or no attention to them. And focus on a few other things that you ought to, be selective to what you give your time and energy to. The things that are important to life and your future. And the things you decide to do must be the things you enjoy doing in the first place, as if you hate them, you will become bitter and end up hating yourself for doing them. You will be ineffective at it—the book is about knowing things you ought to pay attention to and others you should not. This book was recommende...