Here is a letter from an unbliever to an important chap called Diognetus in the 2nd Century A.D. It seems those early Christians made quite an impression on the world in their day. Perhaps we have something to learn.
“Christians cannot be distinguished from the rest of humankind by country, speech or customs.
They do not live in cities of their own; they do not speak a special language; they do not follow
a peculiar manner of life … and yet they show a remarkable, an admittedly extraordinary
structure of their own life together. They take part in everything as citizens and endure
everything as aliens. They live on earth but their citizenship is in heaven. They obey the
established laws but through their way of life they surpass these laws. They love all people and
are persecuted by all … They are as poor as beggars yet they make many rich … They are
abused and yet they bless. They are assaulted and yet it is they who show respect. In a word:
what the soul is in the body, the Christians are in the world. As the soul is present in all the
members of the body, so Christians are present in all the cities of the world