The wine of youth does not always clear with advancing years; sometimes it grows turbid. The very frequent neurotic disturbances of adult years all have one thing in common: they want to carry the psychology of the youthful phase over the threshold of the so-called years of discretion….The neurotic is rather a person who can never have things as he would like them in the present, and who can therefore never enjoy the past either.

Jung, The Structure and Dynamic of the Psyche