One thing you learn doing magic tricks for a living is how close every performance of every magic trick is to disaster. There are no robust magic tricks. They're all hanging from a thread - sometimes literally.
Penn JilletteWhen I buy Windows 98, I'm not only buying something useful, I'm giving money to Bill Gates, which is a really good thing.
Penn JilletteCounterintuitive actions prove we can trust real knowledge and do the opposite of what we feel makes sense.
Penn Jillette