pull up the roots and stop the source—cast away one’s origin ? 你不應該蠢到～的地步。You shouldn’t be so stupid as to pull up the roots and stop the source of water.
拔本塞源bá běn sè yuán
拔掉樹木的根，堵塞水的源頭。比喻丟棄和毀滅根本，也指從根本上著手解決問題。abandon source,extirpate the root of an evil, pull up the roots and stop the source, cast away one’s origin