It is difficult to get a man to understand something when his salary depends upon his not understanding it.
Upton Sinclair, (“It Is Difficult to Get a Man to Understand Something When His Salary Depends Upon His Not Understanding It Quote Investigator” n.d.)
Bibliography
“It Is Difficult to Get a Man to Understand Something When His Salary Depends Upon His Not Understanding It Quote Investigator.” n.d. Accessed November 14, 2022. https://quoteinvestigator.com/2017/11/30/salary/.