Correct

人不可貌相

/ rén bùkě màoxiàng /
Strokes

Definition

you can't judge a person by appearance (idiom)/you can't judge a book by its cover/often in combination 人不可貌相,海水不可斗量[rén bù kě mào xiàng , hǎi shuǐ bù kě dǒu liáng]

Example

Definition

a person cannot be judged by his appearances/exteriors/looks

1
Rénmàoxiàng
人不可貌相
  
,
hǎishuǐ
海水
dòuliáng
不可斗量
  

As the sea cannot be measured with a bushel, people cannot be judged by their appearances.