On Limestone

What most moved W.H. Auden about limestone was the way it eroded. Limestone’s solubility in water means that any fault-lines in the original rock get slowly deepened by a process of soft liquid wear. In this way, the form into which limestone grows over time is determined by its first flaws. For Auden, this was a human as well as geological quality: he found in limestone an honesty—an acknowledgement that we are defined by our faults as by our substance.” —from The Wild Places by Robert Macfarlane

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