Sorry let me erase my posts ....
I studied it , but i don't feel either the need and the capacity to dev in englshi , not my birth langage the concept .
Capital : is the key element to study , what is that concept ...
Second , we can judge a system by its impact , the latter one is more than enougth to figure out it's far from ideal ..... and it will leads to the very essences of it , if you don't see the connection bewteen this system and usury , sure what's coming up next will make no sens for you ...
Let me erase my stuff and get back to subject ....;