Sān rén xíng, bì yǒu wǒ shī yān: zé qí shàn zhě ér cóng zhī, qí bù shàn zhě ér gǎi zhī.
Three walking together, one must be my teacher: choose their virtues to follow, and their faults to mend in myself.
Kàn tóngshì de quēdiǎn yě shì xuéxí, zé qí bù shàn zhě ér gǎi zhī.
Noting colleagues' faults is also learning — take their shortcomings as things to fix in oneself.