You should never try to sell the Dao to anyone. It is not a commodity, not a cheap trinket found in the stalls of a neighborhood flea market. Nor can one buy the treasures of the Dao, no matter how much money one has in their pockets. It is often the very rich who are the most poor. The Dao is free to anyone that seeks it; free to anyone who wishes to experience it. It is the person who has found the Dao, who is truly the richest of all people.