Code of conduct

Guidelines for Ethical Practice

Some early treatises—such as those of Cicero on the pleasantness of old age or on the art of “divination,” Seneca on anger or clemency, and Plutarch on the passing of oracles—presage to a certain degree the form and tone of the essay, but not until the late 16th century was the flexible and deliberately nonchalant and versatile form of the essay perfected by the French writer Michel de Montaigne.