I judge a person by appearance at the same time, I look in the mirror, I have are just ordinary a face.

在我以貌取人的同时我照镜子，我拥有的也只是普通的一张脸。

youdao

Never judge a person by his appearance.

人不可以貌相。

《新英汉大辞典》

From this we know we cannot judge a person by his appearance.

从这个我们知道，我们不能判断一个人的外表。

youdao