Principles are ways of successfully dealing with reality to get what you want out of life.
Ray Dalio, one of the world’s most successful investors and entrepreneurs, cites principles as his key to success.
For most people, life is a never-ending battle between these two parts of the brain. While the amygdala's reactions come in spurts and then subside, reactions from the prefrontal cortex are more gradual and constant. The biggest difference between people who guide their own personal evolution and achieve their goals and those who don't is that those who make progress reflect on what causes their amygdala hijackings.