Here is another famous one from Schumpeter's *History of Economic Analysis* 
(p. 500): 
 
"Frédéric Bastiat's (1801-50) case has been given undue prominence by 
remorseless critics. But it is simply the case of the bather who enjoys 
himself in the shallows and then goes beyond his depth and drowns. (...) I 
do not hold that Bastiat was a bad theorist. I hold that he was no 
theorist." 
 
Guido Erreygers 
University of Antwerp