We are certainly influenced by role models, and if we are surrounded by images of beautiful rich people, we will start to think that to be beautiful and rich is very important - just as in the Middle Ages, people were surrounded by images of religious piety.
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A city like London is sociable in a sense that there are people gathering in bars and restaurants, concerts and lectures. Yet you can partake of all these experiences and never say hello to anyone new. And one of the things that all religions do is take groups of strangers into a space and say it is OK to talk to each other.