"At one time, many philosophers held that faultless "laws of thought" were somehow inherent, a priori, in the very nature of mind. This belief was twice shaken in the past century; first when Russell and his successors showed how the logic men employ can be defective, and later when Freud and Piaget started to reveal the tortuous ways in which our minds actually develop."

"There is no longer any risk that Freudian research will shock us by recalling what there is of the "barbarian" in us; the risk is rather that the findings will be too easily accepted in an "idealist" form."

"For Freud the ultimate psychological reality is the system of attractions and tensions which attaches the child to parental images, and then through these to all other persons."

"Sigmund Freud… Analyze this! Analyze this! Analyze this-this-this!"

"Every time I see a photograph of Freud I wonder how a man who spent his whole life tête-à-tête with sex can look that gloomy."