Tablet of the Holy Mariner — Paragraph 24
Source (Arabic)
ولن يحرّك فيه سفائن الظّنون ولا أفئدة أولي النّهى فسبحان ربّي الأبهى
Translation
"Whereupon the ship of fancy standeth still which the minds of them that comprehend cannot grasp." Glorified be my Lord, the All-Glorious!