Altruism, empathy, compassion, fairness, and even small self-sacrifice for others do not appear to be simply natural human traits, but rather enlightened understanding and learning of what it really takes to maintain the mental, physical, and emotional health of people in a relationship, family, group and community. The more 'enlightened' individuals seen in a particular group, the better the quality of life is apparent for all members, and the less understanding and 'enlightenment', the less success the members of the group will find in various areas of life. Human beings tend to sink to the lowest common denominator, not float to the highest. We are heavier than air, water, and understanding, not lighter. We're dense, and that's our greatest weakness.