台Taivo A Taiwan Mandarin dictionary

路遙知馬力，日久見人心

lùyáozhīmǎlì,rìjiǔjiànrénxīn

ㄌㄨˋ ㄧㄠˊ ㄓㄇㄚˇ ㄌㄧˋ , ㄖˋ ㄐㄧㄡˇ ㄐㄧㄢˋ ㄖㄣˊ ㄒㄧㄣ

Simplified 路遥知马力，日久见人心

1just as distance determines the stamina of a horse, so does time reveal a person's true heart (proverb)

Keep 路遙知馬力，日久見人心 and it comes back until you know it.