tokens: Other inscriptions could be used to express a desire for achieving a high rank through the imperial examination system such as " zhuàng yuán jí dì " ( 狀元及第 , " the first rank at the examination for the Hanlin Academy " ) , longevity with the inscription " cháng mìng bǎi suì " ( 長命百歲 , " long life of 100 years " ) , or a wish for stability with " tiān cháng dì jiǔ " ( 天长地久 , " as eternal and unchanging as the universe " ) .