Only Fools

Only foolish/insecure people think about what other foolish/insecure people think of them. What I fail to understand is why people seem to waste time to notice others' observations; knowing how to manipulate their own brain and how to take in negativity on purpose? That seems to me like the ultimate fool. Try to adapt to "modern-day" thinking man, why are so many of us able to know the time but not have the time but yet we take the time to take in negativity? ... And some people wonder why others complain so much. Ha.