"[W]e can try and apply logic to other areas of life... [I]t's very frustrating if we try... with the expectation that that works. ...[I]t doesn't mean we shouldn't try ...[I]t's always good to try and understand everything else according to logic, but... this is the fate of many mathematicians who... get... frustrated with the actual world, because nothing behaves the way we want... Whereas in the beautiful mathematical world everything does behave..."