《太平广记·卷四百九十三·杂录一》
当时高祖新建洛阳城，凡是建筑制造的东西，因为王肃广泛地知道以前的事情，大有好处。
时高祖新营洛邑，凡所造制，肃博识旧事，大有裨益。
At that time, the founding emperor was newly building the city of Luoyang, so Wang Su’s vast knowledge of antiquity was very helpful for architecture and manufacturing.