In Buddhism, when we behave ethically, we are being true to ourselves; and when we behave unethically, we are being untrue to ourselves. In being true to ourselves, we are creating good karma, and when we are untrue to ourselves, we are creating negative karma. Normally, we think of unethical behaviour as scheming, scamming, lying, and otherwise deceiving other people in one shape or another; yet, in the end, it is actually self-deception that is the root of our moral corruption. . . . Observing this in ourselves, in our nature, we can change tack and recognise the need for a different approach.

-- Traleg Kyabgon Rinpoche