Purpose of Your Life

Have you ever thought, what is the purpose of your life? What are you born for ? How should you live your life? Very difficult question. I can't answer, can you?

1. Human is born to raise children? Not really because when your children grow up, there is no meaning for your life.
2. Human is born to work? So what do you work for? When you dont have work, you should die?
3. Human is born the help others? ---> Why ? Why you have to help?
4. Human is born to learn? Why you have to learn? What do you learn for?
5. Human is born to fulfil their ambitious? If you don't have any ambition, you should die?
6. Human is born to invent? for what?

How to Treat

When you have many friends. You can't usually treat them equally. When they know they may not happy with you. Oh, so difficult... need experience

How to Live a Life

Life is so tough. Many problem to think about. When you are at the turning point. You have to decide. You have to move. I'm so scared of the responsibility I have to bear. Who can help? No one. If there is some one, who will be the person. No, no one. Your family? No. Your friends? No. No one, only you only you.
Well, I'll take on all the responsibily. I dont have any confidence, but hope it's not the last chance I have.
Is living a life an Optimization problem? I beleive. I beleive. If so can you write it down. Well,

maximize {pleasure, happiness, life expectancy,... ? }
minimize {anger, illness, pain, hatred,... ?}
subject to :
1. human respect the natural law
2. law is not perfect
...

If it can be express numerically then you can solve. But how many variables do I need? what are they?