Jules Verne said this quote

“ Your story is not a picture of life; it lacks the elements of truth. And why? Simply because you run straight on to the end; because you do not analyze. Your heroes do this thing or that from this or that motive, which you assign without ever a thought of dissecting their mental and moral natures. Our feelings, you must remember, are far more complex than all that. In real life every act is theresultant of a hundred thoughts that come and go, and theseyou must study, each by itself, if you would create a livingcharacter. 'But,' you will say, 'in order to note these fleetingthoughts one must know them, must be able to follow them in their capricious meanderings.You have simply to make use of hypnotism, electrical or human, which gives one a two-fold being, setting free the witness-personality so that it may see, understand, and remember the reasons which determine the personality that acts. ”