The billionaire investor George Soros says that “Once we realize that imperfect understanding is the human condition, there is no shame in being wrong, only in failing to correct our mistakes.” And Einstein famously said “The definition of insanity is doing the same thing over and over again and expecting different results.” Doing the same thing over and over again is easy. It doesn’t take a new thought or any more effort, which is why most people do it. - entrepreneur.com