Quote: "I know for sure what we dwell on is who we become." Lesson to learn: Be careful of what you often think about. If it's something negative, you can become a negative person. On the other hand, if it's something positive, you'll become more positive. Try to think on the bright side of things when you can.
"If friends disappoint you over and over, that's in large part your own fault. Once someone has shown a tendency to be self-centered, you need to recognize that and take care of yourself; people aren't going to change simply because you want them to."