Emotional agility is a revolutionary, science-based approach that allows us to navigate life’s twists and turns with self-acceptance, clear-sightedness, and an open mind. Renowned psychologist Susan David developed this concept after studying emotions, happiness, and achievement for more than twenty years. She found that no matter how intelligent or creative people are, or what type of personality they have, it is how they navigate their inner world—their thoughts, feelings, and self-talk—that ultimately determines how successful they will become.