You might make a note of such questions and follow up on them later. It is often when we pursue matters that intrigue us that we delve the deepest.
فَغَالِبًا مَا نَغُوصُ أَكْثَرَ فِي ٱلدَّرْسِ حِينَ نُفَتِّشُ عَنِ ٱلْمَسَائِلِ ٱلَّتِي تُثِيرُ ٱهْتِمَامَنَا .‏