法苑珠林 76.17

76.17

口癡而心剛　不柔無惡言
常懷惡兩舌　不念人善利
所言不了了　藏惡在於心
如灰覆炭火　設躡燒人足
其語常柔和　順從言可人
言行而相副　心身不傷人
譬如好華樹　成實亦甘美
佛尊解說是　心口之謀相

The mouth is foolish and the mind is unyielding; / being ungentle, it is not free of evil speech. / Constantly harboring malice and a double tongue, / it does not care for others' good and benefit. / Its speech is indistinct and ambiguous, / concealing evil within the mind, / like ashes covering charcoal fire: / if stepped on, it burns one's foot. / When one's speech is always gentle and mild, / accommodating and agreeable to others, / with words and deeds corresponding to each other, / harming neither in mind nor in body, / it is like a fine flowering tree / whose fruit turns out sweet as well. / The Buddha, the Honoured One, has explained these / as the marks and scheming of mind and mouth.