A person in the Song

The old man's name was Lü Yijian. He was a scholar of the Song Dynasty, serving as the Right Assistant Minister of the Secretariat and Grand Scholar of the Imperial Academy. He was also known as the Duke of Shen.,There's no need to assume any other reasons, but don't jump to conclusions before trying to confirm them.,"If he truly comes from the future, knowing his own position in the previous dynasty, would everything he says still be the truth If he reveals some statements to prove this and convince us, wouldn't it mean he could slander anyone he wants at will Then, with the power of decision in his hands, would we believe him or not"。