Dear Dr. N., 3 August 1918
Naturally I am overjoyed to hear of your success.
Don’t let it upset you that you needed not only a good deal of time but also a bad attack of exam fright to reach this goal.
The neurotic constitution demands a bit more sacrifice and a bit more effort and a bit more patience than does the normal.
In return this moral seriousness is rewarded, whether by outward successes or by the blessing of deepened insight into the world and the soul.
The rebellions of the evil spirit are also valuable experiences which strengthen one’s patience and perseverance if, as you have done, one has taken the trouble to prove to oneself that the expenditure of effort is its own reward.
From the bottom of my heart I wish you every success in the future.
With best regards to yourself and your wife,
Dr. Jung ~Carl Jung, Letters Vol. I, Pages 35-36