When LBJ was majority leader of the Senate, his colleagues were encouraged to work with diligence well into the dusky hours. "What's all the hurry?" a weary senator complained one night, "Rome wasn't built in a day." "No," another replied, "but Lyndon Johnson wasn't foreman on that job!"
[Johnson, famed for his obsessive secrecy, inscribed many of his personal letters with a simple order: "Burn this."]
Sources
Paul Boller, Presidential Anecdotes