John Locke about depth (“An Essay Concerning Human Understanding”, 1689) - It is of great use to the sailor to know the length of his line, though he cannot with it fathom all the depths of the ocean.
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It is of great use to the sailor to know the length of his line, though he cannot with it fathom all the depths of the ocean.
 John LockeAn Essay Concerning Human Understanding (1689). copy citation

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