liú 'èr shí wén shí zhěn jiàn zèng réng jué jiāng hòu jiān guǎng wéi yùn 
liú 'èr shí wén shí zhěn jiàn zèng réng jué jiāng hòu jiān guǎng wéi yùn surname Twain the number 18 have Aragonite Zhenxianzengreng title Quatrains To be Kind thought And four rhyme widely

shīrén: yuán zhěn Yuan Zhen
  zhěn jié wén qióng zhū zhuì piān rén chóu zèng zhōu biānyòng cháng shí jié jūn
   zuì fēng yún yào mián miǎn cǎi xiá lín yào zàozhí péi xiān zhàng yǐn yān
   zhāng qiān què shàng zhī suí huì guī zài nián