"Ganesha is a great scribe. It is who has written down the Mahabharata, the biggest epic ever composed in the world. Having composed Mahabharata mentally, Vyasa was in search of a competent scribe, but he could not find one. At last he found one in Ganesha, the lord of the worldly wisdom and learning. It was agreed upon that Vyasa would go on dictating the epic non-stop to Ganesha provided the former thoroughly understood what he dictated. Ganesha started taking dictation of Mahabharata from the sage Vyasa Dwaypana on palm leaves. He was writing with an iron spike. When about three-fourths of the epic was over, suddenly the pen snapped and Ganesha for a moment in a kind of a fix but then at once he broke his right tusk and continued writing Mahabharata with it. This act of Ganesha clearly reflects his great wisdom and resourcefulness, and the idea that no sacrifice is great for a noble cause. Because of this incident Ganesha is also known as Ekadanta or single tusked."
January 1, 1970
https://en.wikiquote.org/wiki/Ganesha