Editorial note — LESSON I.
Reading edition
[Footnote A: "Sensations, once experienced, modify the nervous organism, so that copies of them arise again in the mind after the original outward stimulus is gone. No mental copy, however, can arise in the mind, of any kind of sensation which has never been directly excited from without.
"The blind may dream of sights, the deaf of sounds, for years after they have lost their vision or hearing; but the man born deaf can never be made to imagine what sound is like, nor can the man born blind ever have a mental vision. In Locke's words, already quoted, 'the mind can frame unto itself no one new simple idea.' The originals of them all must have been given from without. Fantasy, or Imagination, are the names given to the faculty of reproducing copies of originals once left. The imagination is called 'reproductive' when the copies are literal; 'productive' when elements from different originals are recombined so as to make new wholes" (Wm. James: "Psychology," p. 302).]