Ronald Knox on Bishop Berkeley

There was a young man who said, "God,
I find it exceedingly odd
That this tree I see should continue to be
When there's no one about in the Quad."
Reply.
"Dear Sir:
I am always about in the Quad.
And that's why the tree
Will continue to be
Since observed by
Yours faithfully,
God."

[cited in James L. Cox, A Guide to the Phenomenology of Religion (London: T&T Clark, 2006), p. 13]