System of thought
Most of us were born into this world, no one has ever laid claims of jumping into this world of ours, nobody knows anything of this ''world'', everybody laid claims to what were being told. We were trained through doctrines and law, you were sent to school to learn, if you know all and understood this world, why would you have come to school.
If you fail to search and find meaning to this world you would never learn, many institution has tried to make their own explanation of this world. Have you ever tried to question this world of yours that what if you were in another tribe or religious group, what would your belief or life would be?
You don't have to follow what has been like dummies, you have to make some finding on the existed one, the existing one and imaging what would be?
WHY DO YOU BELIEVE WHAT YOU BELIEVE? You believed it because it goes along with your doctrines and what you have seen or heard. You choose to belief what you were told because you think it was wise enough and has no conflict with your life style.
PRACTICAL VIEW
WHAT DO YOU THINK THE DEFINITION OF MORAL IS?
Moral is defined according to ethnical belief, so it means my ethnic may belief LIEING AND STEALING are good, yours may say no. It means in the ethnics where lieing and stealing are good, they are called morals likewise in the other ethnics that they are not being accepted.
You don't have to swallow it all hook, line and sinker beacause you were told it has been like that. Even in the same ethnic we have general belief but we have individual belief which is strengthened by OUR DAILY ACTIVITIES.
Have you ever tested that belief of yours and see if it would yield result, you have to note down the process so that it may be a procedure to others.
Do you think people would bombard you with their belief if it has never being tested and trusted. Put it to test and see result and see if you need a change of doctrines and law.

I know that everyone4s belief is attach to what works 4 us.