《韩非子·存韩》
韩国侍奉秦国三十多年了，在外，它像屏障一样庇护着秦国；在内，它像坐席一样供秦国使用。
韩事秦三十余年，出则为扞蔽，入则为席荐。
South Korea has served Qin for over thirty years, abroad, it sheltered Qin like a shield; domestically, it served Qin like a seat.