" So Paul puts up this tremendous damn integral he had obtained by starting out with a complex function that he knew the answer to, taking out the real part of it and leaving only the complex part. He had unwrapped it so it was only possible by contour integration! He was always deflating me like that. "

― Richard P. Feynman , "Surely You're Joking, Mr. Feynman!": Adventures of a Curious Character