This quote by Oscar Wilde talks to the power of emotion and how it can cloud our judgement. Hatred and love are 2 of the greatest feelings that people experience, and they can both be blinding. When we are consumed by hatred, we can end up being so concentrated on our anger that we can't see the larger photo. We may be unable to acknowledge the humankind of the person we dislike, or the potential for reconciliation. Likewise, when we remain in love, we can end up being so enamored with the object of our affection that we can't see their flaws or prospective for hurt. In both cases, our emotions can lead us to make choices that we may later be sorry for.