William Lauder Lindsay,
Popular Science Monthly
(1880)
“ Temptation frequently begets in the dog, cat, and other animals the same kind of mental or moral agitation, and the same sort of result, as in man. Sometimes we can see—in the dog, for instance—the whole play of the animal's mind—the battle between its virtuous and vicious propensities, its promptings to the right and its endeavors to stick by the right, its longing for the wrong—for the titbit, which it knows it would be improper to steal—and the final triumph either of virtue or temptation. ”
