People who are lazy and undisciplined are much more prone to feeling envy. - Robert Greene

Empathy plays an enormous role in learning and knowledge.

The most important of these skills, and power’s crucial foundation, is the ability to master your emotions. An emotional response to a situation is the single greatest barrier to power, a mistake that will cost you a lot more than any temporary satisfaction you might gain by expressing your feelings.

Your task as a student of human nature is twofold: First, you must understand and accept the theatrical quality of life. You do not moralize and rail against the role-playing and the wearing of masks so essential to smooth social functioning. In fact, your goal is to play your part on the stage of life with consummate skill, attracting attention, dominating the limelight, and making yourself into a sympathetic hero or heroine. Second, you must not be naive and mistake people’s appearances for reality. You are not blinded by people’s acting skills. You transform yourself into a master decoder of their true feelings, working on your observation skills and practicing them as much as you can in daily life.