Though much of what we term morality has no absolute sanction in human nature, yet it is to some extent, and perhaps very largely, based upon it. It will be well, therefore, to consider briefly the nature and probable origin of what we term "character"—in individuals, in societies, and especially in those more ancient and more fundamental divisions of mankind which we term "races." Character may be defined as the aggregate of mental faculties and emotions which constitute personal or national individuality. It is very strongly hereditary, yet it is probably subject to more inherent variation than is the form and structure of the body. The combinations of its constituent elements are so numerous as, in common language, to be termed infinite; and this gives to each person a very distinct individuality, as manifested in speech, in emotional expression, and in action. The mental faculties which go to form the "character" of each man or woman are very numerous, a large proportion of them being such as are required for the preservation of the individual and of the race, while others are pre-eminently social or ethical. These latter, which impel us to truth, to justice, and to benevolence, when in due proportion to all the other mental faculties, go to form what we distinguish as a good or moral character, and will in most cases result in actions which meet with the general approval of that section of society in which we live; and this approval reacts upon the character so that it often appears to be better than it really is. So great is the effect of this approval of our fellows that it sometimes leads to behaviour quite different from what it would be if this approval were absent. This is especially the case when the approval leads to wealth or positions of dignity or advantage. Occasionally, in cases of this kind the individual cannot resist his natural impulses, and then acts so as to show his underlying real character. We term such persons hypocrites for making us believe that they were inherently good, instead of being so in appearance only when the good action was profitable to them. Hence in a highly complex state of civilisation it becomes exceedingly difficult correctly to appraise characters as moral or immoral, good or bad; while there is no such difficulty as regards the intellectual and emotional aspects of character, which are less influenced by the general environment, and which there is less temptation to conceal. All the evidence we possess tends to show that although the actions of most individuals are to a considerable extent determined by their social environment, that does not imply any alteration in their character. Everyone's experience of life, and especially the example of his friends and associates, leads him to repress his passions, regulate his emotions, and in general to use his judgment before acting, so as to secure the esteem of his fellows and greater happiness for himself; and these restraints, becoming habitual, may often give the appearance of an actual change of character till some great temptation or violent passion overcomes the usual restraint and exhibits the real nature, which is usually dormant.

In The Evolution of Moral Progress, Allen Buchanan and Russell Powell resurrect the project of explaining moral progress. They avoid the errors of earlier attempts by drawing on a wide range of disciplines including moral and political philosophy, evolutionary biology, evolutionary psychology, anthropology, history, and sociology. Their focus is on one especially important type of moral progress: gains in inclusivity. They develop a framework to explain progress in inclusivity to also illuminate moral regression--the return to exclusivist and "tribalistic" moral beliefs and attitudes. Buchanan and Powell argue those tribalistic moral responses are not hard-wired by evolution in human nature. Rather, human beings have an evolved "adaptively plastic" capacity for both inclusion and exclusion, depending on environmental conditions. Moral progress in the dimension of inclusivity is possible, but only to the extent that human beings can create environments conducive to extending moral standing to all human beings and even to some animals. Buchanan and Powell take biological evolution seriously, but with a critical eye, while simultaneously recognizing the crucial role of culture in creating environments in which moral progress can occur. The book avoids both biological and cultural determinism. Unlike earlier theories of moral progress, their theory provides a naturalistic account that is grounded in the best empirical work, and unlike earlier theories it does not present moral progress as inevitable or as occurring in definite stages; but rather it recognizes the highly contingent and fragile character of moral improvement.

A provocative and probing argument showing how human beings can for the first time in history take charge of their moral fate. Is tribalism—the political and cultural divisions between Us and Them—an inherent part of our basic moral psychology? Many scientists link tribalism and morality, arguing that the evolved “moral mind” is tribalistic. Any escape from tribalism, according to this thinking, would be partial and fragile, because it goes against the grain of our nature. In this book, Allen Buchanan offers a counterargument: the moral mind is highly flexible, capable of both tribalism and deeply inclusive moralities, depending on the social environment in which the moral mind operates. We can't be morally tribalistic by nature, Buchanan explains, because quite recently there has been a remarkable shift away from tribalism and toward inclusiveness, as growing numbers of people acknowledge that all human beings have equal moral status, and that at least some nonhumans also have moral standing. These are what Buchanan terms the Two Great Expansions of moral regard. And yet, he argues, moral progress is not inevitable but depends partly on whether we have the good fortune to develop as moral agents in a society that provides the right conditions for realizing our moral potential. But morality need not depend on luck. We can take charge of our moral fate by deliberately shaping our social environment—by engaging in scientifically informed “moral institutional design.” For the first time in human history, human beings can determine what sort of morality is predominant in their societies and what kinds of moral agents they are.

This inaugural volume in the Munich Lectures in Ethics series presents lectures by noted philosopher Philip Kitcher. In these lectures, Kitcher develops further the pragmatist approach to moral philosophy, begun in his book The Ethical Project. He uses three historical examples of moral progress--the abolition of chattel slavery, the expansion of opportunities for women, and the increasing acceptance of same-sex love--to propose methods for moral inquiry. In his recommended methodology, Kitcher sees moral progress, for individuals and for societies, through collective discussions that become more inclusive, better informed, and involve participants more inclined to engage with the perspectives of others and aim at actions tolerable by all. The volume is introduced by Jan-Christoph Heilinger and contains commentaries from distinguished scholars Amia Srinivasan, Susan Neiman, and Rahel Jaeggi, and Kitcher's response to their commentaries.

Essays showing how environmental philosophy can have an impact on the world by integrating abstract reasoning with actual environmental practice.