Al-Kahf - 18:68

وَكَيْفَ تَصْبِرُ عَلَى مَا لَمْ تُحِطْ بِهِ خُبْرًا
[18:68]
And how can you have patience in that of which you have not got a comprehensive knowledge?
"And how canst thou have patience about things about which thy understanding is not complete?"
How canst thou bear with that whereof thou canst not compass any knowledge?