老驥伏櫪

Simplified: 老骥伏枥

lǎo ㄌㄠˇ ㄐㄧˋ ㄈㄨˊ ㄌㄧˋ

    • lit. an old steed in the stable still aspires to gallop 1000 miles (idiom) fig. aged person with great aspirations

Character by character

Sources