Insanity, a la Albert Einstein, is “doing the same thing over and over and expecting different results.” He might have used that witticism to describe the world as best he could, or at least the world as best he knew it. There are ways that he’s wrong, and ways that he’s right, but at the end of the day, most people who expect something to change or to improve, but refuse to change their approach to said task are being insane.
You’ve heard it before, whether from a boss, a coach, a teacher, or any sort of mentor, really.