It's hard to understand people nowadays.
I've learned more about human behaviors (not theoretically).

Even as simple as in making friends, people would firstly see if they can gain profit from the other party or to take advantage from the other.
If they don't benefit from this friendship, they'd slowly back off.
However, not everyone has this personality. Just the minority but how much is this minority ?

What has happened to humanity?
As we grow older.. a true friendship is more difficult to be found.
The more i know about people, the more i value the friendship between me and my true friends.