Theories are not rejected by cirsumstantial evidence: it takes a theory to beat a theory.
George StiglerThe main insight learned from interdisciplinary studies is the return to specialization
George StiglerI recall my mother asking in about 1946 what I was and I replied proudly that I was a professor. A decade later she repeated her question and I repeated my answer. "No promotion?" was her comment.
George StiglerA Swedish physicist can not discuss his work with fifty people unless he goes abroad. A Swedish economist can get opinions and instructions in his native language from thousands upon thousands of his fellow citizens.
George Stigler