Yabla Chinese

Yabla video uses of 正则
然后 ránhòu
柳公权 LiǔGōngquán
说 shuō
心 xīn
正则 zhèngzé
笔 bǐ
正 zhèng
Then, Mr. Liu Gong Quan said "If your heart is upright, your brush will be."