A finger points at the moon, but the moon is not at the tip of the finger. Words points at the truth, but the truth is not in words.

Hui Neng (638-713), Huineng also commonly known as the Sixth Patriarch of Chan, is a central figure in the early history of Chinese Chan Buddhism. According to tradition he was an uneducated layman who suddenly attained awakening upon hearing the Diamond Sutra.