Every other sin hath some pleasure annexed to it, or will admit of an excuse; envy alone wants both. Other sins last but for awhile; the gut may be satisfied, anger remits, hatred hath an end, envy never ceaseth.
Robert Burton, The Anatomy of Melancholy, Part I, Section 2, member 3, subsection 7, Envy, Malice, Hatred, Causes (1621).
Image: Albrecht Dürer, Cain Killing Abel (1511), detail.