It is in Christianity that our arts have developed; it is in Christianity that the laws of Europe — until recently — have been rooted. It is against a background of Christianity that all of our thought has significance. An individual European may not believe that the Christian faith is true, and yet what he says, and makes, and does will all spring out of his heritage of Christian culture and depend upon that culture for its meaning...I do not believe that culture of Europe could survive the complete disappearance of the Christian faith. And I am convinced of that, not merely because I am a Christian myself, but as a student of social biology. If Christianity goes, the whole culture goes.

Humor is also a way of saying something serious.

We have lingered in the chambers of the sea
By sea-girls wreathed with seaweed red and brown
Till human voices wake us... and we drown.