Correct

强中自有强中手

/ jiàng zhōng zì yǒu jiàng zhōng shǒu /

Strokes

Definition

however strong you are, there is always someone stronger (idiom)/there is always sth more to learn/never be satisfied to rest on your laurels/there is no room for complacency

Example

Definition

however strong you are, there is always someone stronger; however good you are at something, there is always someone better