First would be the literary side, then the spiritual and philosophical. The political side is required principally because of the necessity of the current Russian position.
Aleksandr SolzhenitsynIn 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.
Aleksandr Solzhenitsyn