| http://www.w3.org/ns/prov#value | - Were I to walk into an engine-room and point out to the engineer the intolerable waste of steam entailed by a hole in the boiler, and urge him promptly to stop it, he might turn upon me with some such reply as this: ???Sir, that hole is called the safety-valve; if you would bring your mighty brain-power to bear on some subject with which previous study has qualified you to deal, without making an
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