Page:Biographia literaria; or, Biographical sketches of my literary life and opinions (IA biographialitera04cole).pdf/243



In the perusal of philosophical works I have been greatly benefited by a resolve, which, in the antithetic form and with the allowed quaintness of an adage or maxim, I have been accustomed to word thus: "until you understand a writer's ignorance, presume yourself ignorant of his understanding." This golden rule of mine does, I own, resemble those of Pythagoras in its obscurity rather than in its depth. If however the reader will permit me to be my own Hierocles, I trust, that he will find its meaning fully explained by the following instances. I have now before me a treatise of a religious fanatic, full of dreams and supernatural experiences. I see clearly the writer's grounds, and their hollowness. I have a complete insight into the causes, which through the medium of his body has acted on his mind; and by application of received and ascertained laws I can satisfactorily explain to my own reason all