Bill Bryson: Consider the Lichen. Lichens are just about the hardiest visible organisms on Earth, bu


	Bill Bryson Bill Bryson Consider the Lichen. Lichens are just about the hardiest visible organisms on Earth, but the least ambitious. Bill Bryson BestQuotes4Ever.com Consider the Lichen. Lichens are just about the hardiest visible organisms on Earth, but the least ambitious. 3240

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