In late September 1950, I began my undergraduate education at Harvard. Taking the advice of Herb Winston, who had preceded me to Harvard from Forest Hills High School, I enrolled in Philosophy 140, Willard Van Orman Quine’s course on symbolic logic. We used Quine’s own book, Methods of Logic, in which at one point he introduces a quick and dirty method of ascertaining the validity of certain inferences to which he gives the name “fell swoop.” The phrase comes from MacBeth and originally meant the cruel, quick killing dive of a hawk or kestrel hunting for rodents and other small prey. Quine had an unexpectedly puckish sense of humor, and at one point observed that there was an inverse to the fell swoop procedure, which, he suggested, could be called a “swell foop.” The characteristic and astonishingly fast hunting dive by raptors is called a stoop. So a fell swoop is a stoop. I have often wondered whether the 18th century Irish playwright Oliver Goldsmith had that meaning in mind when he wrote She Stoops to Conquer.