But fortunately, I had a secret weapon with me, which was a chart that had the average income of all of the graduates from Stanford PhD programs, and then the average income of all the dropouts from Stanford graduate programs.
Pero afortunadamente,  yo tenía mi arma secreta. Era una gráfica con los salarios promedio de todos los graduados de los programas de doctorado de Stanford y los salarios promedio de todos los que habían abandonado los programas de doctorado de Stanford.