《资治通鉴·汉纪·汉纪十二》
栾大原来侍奉胶东康王刘寄，善于说好听的话，富于智谋，敢说大话，从不犹疑。
大先事胶东康王，为人长美言，多方略，而敢为大言，处之不疑。
Luan Da was a servant of Prince Liu Ji of Jiaodong. He was good at flattery, resourceful, and dared to talk big without any hesitation.