誓言是蛊惑人心毒药
[shì yán shì gŭ huò rén xīn dú yào]
'Oath Is a Heart Poisoning Decoy' indicates that vows made during courtship are considered dangerous and alluring. Here, the writer views pledges of love not as sincere or binding promises, but rather manipulative words designed only to attract or deceive others. It shows a certain degree of distrust or cynicism toward romantic love declarations.