[ ] was troubled by materialism... His philosophical solution of the spiritual problem lat in his affirmation of the identity of the mind and matter … - Edwin Boring

[William James, in the 1890s] began that metamorphosis of German psychology which was to alter the Teutonic worm of sensory content into the American butterfly of functional reality.

It is not likely that the history of psychology can be written in the next three centuries without mention of Freud's name and still claim to be a general history of psychology... Perhaps, had Freud been smothered in his cradle, the times would have produced a substitute, It is hard to say. The dynamics of history lack control experiments.

[ Titchener ] always seemed to me the nearest approach to genius of anyone with whom I have been closely associated.… He was competent with languages, and could ad lib in Latin when the occasion required it. If you had mushrooms, he would tell you at once how they should be cooked. If you were buying oak for a new floor, he would at once come forward with all the advantages of ash. If you were engaged to be married, he would have his certain and insistent advice about the most unexpected aspects of your problems, and if you were honeymooning, he would write to remind you, as he did me, on what day you ought to be back at work.