Can Our World Still Works Base on Trust?

Selfishness, cons, mistrust, betrayal have all manifest our human lifes. Apparently it is all these fucking human behaviour that made human being losing trust with one another.Would you ever dare to reveal your personal information to some hi-bye friends? you'll most probably not because you never know what they can do with those information. Sadly and truly, thats what everyone cityman thinks about. Are these human nature or effects of modern lifes?I guess i would go with effects on human lifes by the revolution of modern life because i use to listen to my grandmother talking about her life in the past. Definitely everyone was poor, at least most, but they seems to be bonded very strongly, maybe this is because of the small villages they live in and the lack of communication devices so as they only have the neighbours to chat with and thus building strong relationship and trust. In the past people might not have heard of a lock because either it has not been invented or they are too poor to afford or most likely they do not need one. People trust each other in the past certainly more than now. It may be the greed that has change human but nevertheless greed has also play a strong part in our economy and contributing to the higher income level that we are receving now. I think life is fair, when you are awarded with something, something would be taken. therefore, maybe because of the material benefits we are given, we have lose our values, our trust among one another which i think will never ever be able to bought by money or substituted with materials, its just a shame to human beings.