Climb down a chimney into any house at random, and get on as well as possible with the people inside.

Of course the family is a good institution because it is uncongenial. It is wholesome precisely because it contains so many divergencies and varieties. It is, as the sentimentalists say, like a little kingdom, and, like most other little kingdoms, is generally in a state of something resembling anarchy. ...

The best way that a man could test his readiness to encounter the common variety of mankind would be to climb down a chimney into any house at random, and get on as well as possible with the people inside. And that is essentially what each one of us did on the day he was born.

G.K. Chesterton, Heretics