I've used Biblical sayings in everyday speech like describing a good person as a good Samaritan and 'turning the other cheek' etc. even wanting an 'eye for an eye' (metaphorically speaking) in anger. As with Shakespeare it has some really good sayings but possibly only remembered by a generation that had regular studies of the Bible in their religious education to refer to.

From the 60's onwards I would say America has had more influence on how we speak today, the younger generation are more likely to be well travelled than previous ones so are more likely to be influenced by the friends they meet and the teen flicks that they watch.