深藏不露

yǎn jing dà de rén rè qíng yǎn jing xiǎo de rén shēn cáng bù lù bù gòu tǎn shuài

眼睛大的人热情，眼睛小的人深藏不露，不够坦率。

Large-eyed people are passionate while small-eyed ones are secretive and reserved.

tā zǒng shì shēn cáng bù lù

他总是深藏不露。

He has always been a deep one.