Mystical explanations are considered deep; the truth is, they are not even shallow.
[Die mystischen Erklärungen gelten für tief; die Wahrheit ist, dass sie noch nicht einmal oberflächlich sind.]
Friedrich Nietzsche (1844-1900) German philosopher and poet
The Gay Science [Die fröhliche Wissenschaft], Book 3, § 126 (1882) [tr. Nauckhoff (2001)]
(Source)
Also known as La Gaya Scienza, The Joyful Wisdom, or The Joyous Science.
(Source (German)). Alternate translations:
Mystical explanations are regarded as profound; the truth is that they do not even go the length of being superficial.
[tr. Common (1911)]
Mystical explanations are considered deep. The truth is that they are not even superficial.
[tr. Kaufmann (1974)]
Mystical explanations are considered deep; the truth is they are not even shallow.
[tr. Hill (2018)]