Not from economics, but worth telling:
In the late 1970s and early 1980s B.F. Skinner was not yet very old. Born in 1904 the famous behaviorist was still busy working and teaching at Harvard Univeristy. But he must have felt old. His sternly defended and once highly influential behaviorism had gradually been discarded for a psychology that, horros of horrors, tried to open up the mind’s black box. In addition, a mathematical approach to psychology that dwarfed all behaviorism’s strict and formal claims to scientificity had strongly gained in prominence. But Skinner could not let go and sent letter after letter to his colleague Duncan Luce, by this time an equally famous cognitive and mathematical psychologist. Skinner tried to persuade Luce of the merits of behaviorism and the demerits of modelling the mind’s interior. Luce thanked him for sharing his ideas with him. Skinner sent Luce his latest book, and asked whether they could meet some time next week to discuss cognitive psychology. Pick a day and time of your convenience. One week later Luce responded politely that no unfortunately he was too busy. Lunch then? Skinner tried. But again Luce declined. A few more difficult back-and-forth polite invitations followed over the course of a few years.
Based on Luce -Skinner correspondance in archives of Harvard University