David Garrick? Thomas Campbell? George Colman? John Simon? Wesley Ruggles? W. C. Fields? Carlotta Monti? Penelope Keith? Rex Harrison? Apocryphal? Dear Quote Investigator: Comedy is often lighthearted; hence, it is counter-intuitive to view it as a serious business, yet the creators and participants of humorous works face a harsh and crowded entertainment market; they must …