xiǎng qīngchu yǐhòu, zài fēn liǎng diǎn shuō, bǐ mǎshàng luàn dá gèng hǎo

想清楚以后，再分两点说，比马上乱答更好。

It's better to think it through first and explain it in two points rather than rushing into a messy answer.