"In the camp, this meant committing my verse-many thousands of lines-to memory. To help me with this I improvised decimal counting beads and, in transit prisons, broke up matchsticks and used the fragments as tallies. As I approached the end of my sentences I grew more confident of my powers of memory, and began writing down and memorizing prose-dialogue at first, but then, bit by bit, whole densely written passages. My memory found room for them! It worked. But more and more of my time-in the end as much as one week every month-went into the regular repetition of all I had memorized."