52 MATHEMATICIAN, ne’er forget The number not to fix Of thy prolific brood of yet Unincubated chicks! Let newly-wedded couples name No visionary son ; And let not Quatre Bras exclaim That Waterloo is won. Let fiancées (of fifteen years) No furniture discuss ; Let mountains never pose as seers Of the expected “ mus.” Let glories of a novel climb Before that climb be dumb ; Nor of a record-breaking time Before the achievement hum. Let no man of his doings boast Before those deeds be wrought; No cook proceed his hare to roast Before that hare be caught.