duìfāng xiān zhīdào nǐ zhīchí shénme, zài tīng lǐyóu, lǐjiě chéngběn huì dī hěn duō

对方先知道你支持什么，再听理由，理解成本会低很多。

Letting them know what you support before hearing the reason makes it much easier for them to understand.