《资治通鉴·周纪·周纪三》
秦惠王想征讨蜀国，但考虑到道路狭窄险峻，不容易到达，又担心韩国趁机侵扰，犹犹豫豫迟迟没有下决定。
秦惠王欲伐蜀。以为道险狭难至，而韩又来侵，犹豫未能决。
King Hui of Qin wanted to attack the State of Shu, but considered that the roads were narrow and dangerous, making it difficult to get there. He was also worried that the State of Han would take advantage of the situation to invade, and hesitated for a long time without making a decision.