"Imagine if you will, that you should see a man that had a large pond of water, yet lived in continual thirst, not allowing himself to drink half a glass for fear of lessing his pond. 

If you should see him always thirsty, yet always carrying a bucket of water in his hand, watching early and late to catch the drops of rain, gaping after every cloud, and running greedily into every mire and mud in hopes of water, and always studying how to make every ditch empty itself into his pond. 

If you should see him grow old and grey in these obnoxious labors, and at the end of his life he ends his anxiety ridden, thirsty life by falling into his own pond; would you not say that such a one was not only the author of all his own disquiets, but was foolish enough to be reckoned amongst idiots and madmen? 

But yet, foolish and absurd as this character is, it does not represent half the follies and absurd disquiets of the greedy, covetous man." William Law.