Final answer:
To further delve into moral philosophy after James Rachels's work, consider Aristotle's 'Nicomachean Ethics' for its exploration of virtue ethics, John Stuart Mill's 'Utilitarianism' for utilitarian principles, and Simone de Beauvoir's 'The Second Sex' for a feminist perspective on ethics.
Step-by-step explanation:
After reading James Rachels's The Elements of Moral Philosophy, you may want to explore other influential works to broaden your understanding of moral philosophy. I recommend Aristotle's Nicomachean Ethics, where he introduces the concept of virtue ethics, emphasizing the character and virtues of a person rather than their actions alone.
Another seminal work is John Stuart Mill's Utilitarianism, which advances the principle of utility and seeks the greatest happiness for the greatest number. You could also consider reading Simone de Beauvoir's The Second Sex, which offers a profound exploration of ethics from a feminist perspective, challenging traditional moral concepts.
These works will provide a robust foundation in various ethical theories, helping you to develop a more comprehensive understanding of moral reasoning and the qualities that define the good life.