时光帮你看透是人是狗
[shí guāng bāng nĭ kàn tòu shì rén shì gŏu]
'Time Helps See Through Whether One is Man or Beast' metaphorically states that time reveals someone's true nature, distinguishing those who have virtues (like humans) from those who do not behave humanely. This often has an element of discernment and disappointment with false friends or enemies.