When you believe in yourself and take action, the results often develop in a positive direction; when you believe in others and act within their expectations and value recognition, the outcome will also be shaped by these expectations. This is the Rosenthal effect, where expectations influence behavior, and behavior in turn verifies expectations. It itself has no good or evil: when used on oneself, it is self-reinforcing; when applied in interpersonal relationships, it can be to stimulate potential and build trust, but it can also become an over-fulfillment of others' expectations when boundaries are lacking. Many logics are inherently gray; the key is not what they are, but how you use them and whether you always maintain your own judgment and choices.