It is of great use to the Posted on October 30, 2013October 30, 2008 by admin “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 Locke Author: John Locke Category: great Tags: great, John Locke Spread the love Related posts: The last great delusion is soon to There is a kind of elevation which There have been two great accidents in What is wonderful about great literature is