Why no one cares:

A study done by the National Science Foundation claims that people have, on average, 50,000 plus thoughts a day. This means that even if someone thought about us ten times in one day, it’s only 0.02% of their overall daily thoughts. It is a sad but simple truth that the average person filters their world through their ego, meaning that they think of most things relating to “me” or “my.” This means that unless you have done something that directly affects another person or their life, they are not going to spend much time thinking about you at all.

How to not give a fuck, summarized:

http://pandawhale.com/post/1845/how-to-not-give-a-fuck-summarized