There is a quotation by A. Solzhenitsyn which relates to Russian village churches which is oft quoted, but the primary source is never given; only people who have quoted it.

It begins like this: "When you travel the byroads of central Russia, you begin to understand the secret of the pacifying Russian countryside. It is in the churches. They lift their belltowers -- graceful, shapely, all different -- high over mundane timber and thatch. From villages that are cut off and invisible to each other, they soar to the same heaven. People who are always selfish and often unkind -- but the evening chimes used to ring out, floating over the villages, fields, and woods, reminding men that they must abandon trivial concerns of this world and give time and thought to eternity."

What is the primary source of this?