Scientific autobiography by Max Planck (1948) by 
Ciro Santilli 32 Updated 2024-09-07 Created 1970-01-01
Ciro Santilli 32 Updated 2024-09-07 Created 1970-01-01quoteinvestigator.com/2017/09/25/progress/ on Quote Investigator says it appeared in 1948. Can't easily check, but will believe it for now.