《汉书·传·荆燕吴传》
吴国虽然贫穷，但我三十余年来，节衣缩食，积聚金钱，夜操练军队，屯积粮食。
吴国虽贫，寡人节衣食用，积金钱，修兵革，聚粮食，夜以继日，三十余年矣。
Although Wu is poor, I have been saving money for more than 30 years, and I have been training troops at night and hoarding food.