It is in the admission of ignorance and the admission of uncertainty that there is a hope for the continuous motion of human beings in some direction that doesn't get confined, permanently blocked, as it has so many times before in various periods in the history of man. - Richard P. Feynman (1918 – 1988)

whatIsCookTheorem.pdf

论文已在 arXiv 发布：http://arxiv.org/abs/1501.01910。