Authors:

Every person who has mastered a profession is a skeptic concerning it.

Nelly Sachs, George Bernard Shaw, Frans Eemil Sillanpää, René Sully-Prudhomme (1971). “Nelly Sachs, Jean-Paul Sartre, George Bernard Shaw, Frans Eemil Sillanpää, René Sully-Prudhomme”
Every person who has mastered a profession is a skeptic concerning it.