“屋漏痕”出自陆羽《释怀素与颜真卿论草书》。怀素与邬彤为兄弟,常从彤受笔法。彤曰:“张长史私谓彤曰:‘孤蓬自振,惊沙坐飞,余自是得奇怪。’草圣尽于此矣。”颜真卿曰:“师亦有自得乎?”素曰:“吾观夏云多奇峰,辄常师之,其痛快处如飞鸟出林,惊蛇入草。又遇坼壁之路,一一自然。”真卿曰:“何如屋漏痕?”素起,握公手曰:“得之矣。”这一段对话体现了 “House leakage marks ” from Lu Yu “release element and Yan Zhenqing on cursive.” Huai Su and Wu Tong brothers, often from Tong by writing. Tong said: “Zhang Changshi private said Tong said:” Solitary self-vibration, scared to fly, I was surprised. “Cao Sheng to do this. ” Yan Zhenqing said: “Supremacy: ” My view of the summer cloud more Qifeng, often often division, the pain of fast as a bird out of forest, astonished into the grass .When the wall of the road, one by one. “Zhenqing said: ”What is the house leakage marks? “ From the prime minister, holding the hand said: ”This section of the dialogue reflects