"Probably all the books I've ever written have been efforts to define the boundaries of humanity"

Fred Saberhagen's quote recommends that he has used his writing to explore the limitations of what it suggests to be human. He may have utilized his writing to explore the depths of human feeling, the power of human relationships, and the capacity of human creativity. He may have likewise used his writing to check out the limits of morality, the limitations of human understanding, and the effects of human actions. By checking out these boundaries, Saberhagen might have been trying to gain a better understanding of what it indicates to be human and how we can use our mankind to make the world a better location. Eventually, Saberhagen's quote suggests that he has utilized his writing to check out the borders of humanity and to acquire a better understanding of what it suggests to be human.