How does Anthony Burgess use imagery in A Clockwork Orange?

Burgess uses line-circle imagery in The Wanting Seed and A Clockwork Orange. In both novels, determinism and mechanical progress are associated with lines, while freedom and organic growth are associated with circles. Reality for Burgess often emerges from the interaction of contrary principles like these; in A Clockwork Orange Alex's linear, determined youth is contrasted with his freedom in maturity when he decides to marry, have a child, and give up his violence. But the cycle continues, and paradoxically Alex's freedom will lead him to have a child who once more will be subjected to the deterministic phase of the process.