Altruism Helping behavior 29 Conduct of life 12 Moral and ethical aspects 12 Social aspects 11 Love 10 Psychological aspects 10 more ... Ethics 9 Interpersonal relations 9 Psychology 9 Economic aspects 8 Economics 8 Evolution (Biology) 8 Cooperation 7 Cooperativeness 7 History 7 Humanitarian assistance 7 Medical care 7 Religious aspects 7 Righteous Gentiles in the Holocaust 7 Social norms 6 Caring 5 Egoism 5 Humanitarianism 5 Motivation (Psychology) 5 Philosophy 5 Physicians 5 Social groups 5 Altruistic behavior in animals 4 Behavior evolution 4 less ...