The Life-Changing Magic of Not Giving a F*ck: How to Stop Spending Time You Don't Have with People You Don't Like Doing Things You Don't Want to Do (A No F*cks Given Guide Book 1)

by Sarah Knight

But some time, some day, in your heart of hearts, you will know when it is okay to hurt someone’s feelings in the process of not giving a fuck. Economists call it an opportunity cost. I call it common sense.