Practical Ethics

Singer argues that the ability to suffer or experience enjoyment is the fundamental basis for moral consideration. This idea, called the Principle of Equal Consideration of Interests, means that if two beings have similar interests (e.g., in avoiding pain), those interests should be given equal weight, regardless of their race, sex, intelligence, or species. He says that denying equal consideration based on species (speciesism) is as arbitrary and wrong as racism or sexism. This does not mean all beings are equal in all ways, but that...

Using the Principle of Equal Consideration, Singer systematically refutes common reasons for widespread animal exploitation. He states that if a being can suffer, its suffering matters morally. This challenges the Cartesian view of animals as unfeeling machines and the Judeo-Christian idea of human dominance. Singer argues that animals, especially in factory farms and research labs, experience immense and unnecessary pain. He sees modern agricultural and scientific practices as clear examples of speciesism, where human interests (ofte...

Singer addresses the sensitive topics of abortion and infanticide by distinguishing between a 'human being' (a member of the species Homo sapiens) and a 'person' (a being capable of self-awareness, rationality, and future planning). He argues that simply being human does not automatically grant a right to life. A fetus, especially in early stages, lacks the traits of a person, so its destruction is not morally equal to killing an adult human. This view extends to severely disabled newborns who may never develop personhood. He sugges...

Consistent with his personhood argument, Singer supports voluntary euthanasia for individuals suffering from incurable and painful conditions who autonomously choose to end their lives. He emphasizes respect for individual autonomy and the reduction of suffering. For Singer, the idea that all human life is sacred and must be preserved at all costs is often misapplied when it leads to prolonged agony for someone who wishes to die with dignity. He also discusses non-voluntary euthanasia for individuals who are not (and never were) perso...

Singer presents one of his most compelling and challenging arguments: that people in wealthy nations have a strong moral duty to reduce suffering and poverty in developing countries. He uses the 'drowning child' analogy: if you see a child drowning in a shallow pond and can save them with little cost to yourself (e.g., getting your clothes wet), you are morally obligated to do so. He argues that distance or the presence of many other potential helpers does not lessen this duty. The implication is that much of the discretionary spendin...

Singer extends his utilitarian framework to environmental ethics, arguing against a human-centered view that values nature only for its usefulness to humans. While he acknowledges that non-sentient parts of the environment (like rocks or rivers) do not have interests in the same way sentient beings do, he stresses the interconnectedness of ecosystems and the great suffering that environmental destruction causes animals. He also notes that human well-being is connected to a healthy planet, giving a utilitarian reason for environmental ...

Singer applies his utilitarian perspective to the ethics of political violence and civil disobedience. He argues that violence is almost always counterproductive, leading to more suffering and often undermining its own goals. However, he acknowledges that in extreme situations, when all non-violent options have been exhausted and there is a clear, high chance of achieving a greater good while minimizing harm, violence might be reluctantly justified. Civil disobedience, on the other hand, is often a more ethically sound and effective w...

Singer extends the duty to assist to the plight of refugees. He argues that wealthy nations, with their greater resources, have a clear moral duty to accept and help those fleeing persecution, war, or extreme poverty. Refugees often experience immense and immediate suffering, and wealthy countries have a significant capacity to alleviate this. He criticizes nationalistic or xenophobic arguments that prioritize the interests of current citizens over the desperate needs of those seeking refuge. While acknowledging practical concerns lik...

Singer's work is not only about specific issues but also about the method of ethical reasoning. He consistently advocates for a utilitarian approach, where the morally right action produces the greatest good for the greatest number, or minimizes suffering. This requires impartiality, a willingness to consider all affected interests equally, and a rigorous application of logic, even when it leads to conclusions that are counter-intuitive or challenge deep-seated societal norms and personal biases. He stresses that ethics is not just ...