O. Henry Quote

His mathematics carried with it a momentary qualm and a lesson. The thought had not occurred to him that the thought could possibly occur to me not to ride at his side on that red road to revenge and justice. It was the higher calculus. I was booked for the trail. I began to eat more beans.

Tales of O. Henry, A Technical Error (p. 1059 ), Doubleday & Company, Inc. 1953