" Given his age, Jan Bublanski was afraid of many things. But perhaps he feared the absence of doubt most of all. He was a man of faith who was uncomfortable in the face of convictions too strongly held or over-simplified explanations. He was forever producing counter-arguments and contrary hypotheses. Nothing was so certain that it could not be challenged one more time. "

― David Lagercrantz , The Girl Who Takes an Eye for an Eye (Millennium, #5)