Getting unstuck

From Garner's Quotation of the Day:

"There may be some writers in this world who never get stuck, writers whose fluency is so great that it carries them without a break from the beginning to a predetermined end. I am not one of them. I wouldn't believe anyone who claimed to be. I get stuck with depressing regularity, and I find that the best way to become unstuck is to start over as if I were writing a letter to a friend. This prescription also seems to work well for others who have tried it." -- Ernst Jacobi, Writing at Work: Dos, Don'ts, and How Tos 4 (1976)