This quote by Henry Wadsworth Longfellow recommends that evil is not a fundamental quality, but rather a distortion of something that is great. He indicates that evil is a perversion of something that is excellent, and that it is not an independent force. This idea is supported by the truth that evil typically takes the type of a corruption of something that is great, such as when power is abused or when somebody makes the most of another individual. It is likewise possible to analyze this quote as a warning versus allowing good intentions to be twisted into something that is damaging. In this way, Longfellow is warning us to be mindful of how our actions can be distorted and to be aware of the capacity for evil to develop from something that is initially good. Ultimately, this quote functions as a reminder that we ought to strive to preserve our moral compass and to be vigilant versus the potential for evil to emerge from our own actions.