He was having, he wrote, "grave doubts" about his theory, leaving him in a state of what he described as "fathomless, and bottomless laziness, intellectual stagnation", Freud confessed.

Freud put this forward in his theories about hysteria ... that “the brain mechanisms that drive dreaming have a positive motivational urge behind them”, Solms says. The brain regions involved ...

And this is something that Freud thought Breuer had failed to see. "The plunging into sexuality in theory and practice," Breuer wrote, "is not to my taste." Breuer objected that Freud had ...