The phrase 'a living example' is correct and usable in written English. You can use it to describe a person who is demonstrating or exemplifying something. For instance, you could say: "John is a living example of commitment and hard work; he never gives up despite adversity.".
The World Bank is a living example.
Bosnia is a living example, because there has been no reckoning.
If ever you wanted a living example of what good leadership can achieve, this it it.
"I'm a living example that hard work and perseverance pays off.
Many people talk about aspiration, but Andy is a living example.
She cast herself as an exotic movie star and a living example of Mexican culture and style.
Nevertheless, his sentiment does not reflect reality: he is not a living example of the elegance he posits.
Being a terminologist, I care about word choice. Ludwig simply helps me pick the best words for any translation. Five stars!
Maria Pia Montoro
Terminologist and Q/A Analyst @ Translation Centre for the Bodies of the European Union