Many such as June Singer have argued that Blake's thoughts on human nature greatly anticipate and parallel the thinking of the psychoanalyst Carl Jung. In Jung's own words: "Blake a tantalizing study, since he compiled a lot of half or undigested knowledge in his fantasies. According to my ideas they are an artistic production rather than an authentic representation of unconscious processes." Similarly, Diana Hume George claimed that Blake can be seen as a precursor to the ideas of Sigmund Freud.