Rìjiǔ jiàn rénxīn, hé tā gòngshì jǐ nián cái zhēnzhèng liǎojiě tā.
Time reveals a person's heart — only after years of working together did I really understand him.
Bié jí zhe xià jiélùn, lùyáo zhī mǎlì, rìjiǔ jiàn rénxīn.
Don't rush to conclusions — time tests a horse, and time reveals a man's heart.