This is a quote from the book "Animal Farm" by George Orwell
...uring farms: not, of course, for any commercial purpose, but simply in order to obtain certain materials which were urgently necessary. The needs of the windmill must override everything else, he said . He was therefore making arrangements to sell a stack of hay and part of the current year’s wheat crop, and later on, if more money were needed, it would have to be made up by the sale of eggs, for w hich there was always a market in Willingdon. The hens, said Napoleon, should welcome this sacrifice as their own special contribution towards the building of the windmill.

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