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When you are Hammer, strike your Fill.”
                                
                                
                                
                                
                            
                                        
                                        Compare Poor Richard's Almanack (1758) : When you're an Anvil, hold you still, When you're a Hammer, strike your Fill. 
Introductio ad prudentiam: Part II (1727), Gnomologia (1732)
                                    
 
        
     
                             
                             
                             
                             
                             
                            