Self-estime. Something so simple but so dangerous. Lose it and you lose your way, have to much of it and you make people hate you.
It can make people love you or make them hate you. Can make you became famous or can make you lose everything. What need is balance. That is the key world for a good and healthy life. Don't each too much but don't die o hunger. Don't believe you can fly but don't lose hopes that you can walk.
If you can do that, you can do anything. You will hardly get hurt or lost.
I'll continue writing later.