《明史·志·卷六十》
为了祖陵的安全考虑，不得不修筑石堤来保护它，堤岸加高河水就更高，从根本上说很值得忧虑。
为祖陵计，不得不建石堤护之。堤增河益高，根本大可虞也。
Out of concern for the safety of the Imperial Mausoleum, a stone dike had to be built to protect it.  When the riverbank is raised, the river rises even higher.  Ultimately, this is very worrying.