台Taivo A Taiwan Mandarin dictionary

小時了了，大未必佳

xiǎoshíliǎoliǎo,dàwèibìjiā

ㄒㄧㄠˇ ㄕˊ ㄌㄧㄠˇ ㄌㄧㄠˇ , ㄉㄚˋ ㄨㄟˋ ㄅㄧˋ ㄐㄧㄚ

Simplified 小时了了，大未必佳

1being bright at an early age does not necessarily bring success upon growing up (proverb)

Keep 小時了了，大未必佳 and it comes back until you know it.