أَفَلَمۡ يَسِيرُواْ فِى ٱلۡأَرۡضِ فَتَكُونَ لَهُمۡ قُلُوبٌ يَعۡقِلُونَ بِهَآ أَوۡ ءَاذَانٌ يَسۡمَعُونَ بِهَا ۖ فَإِنَّهَا لَا تَعۡمَى ٱلۡأَبۡصَٰرُ وَلَٰكِن تَعۡمَى ٱلۡقُلُوبُ ٱلَّتِى فِى ٱلصُّدُورِ
Do they not travel through the land, so that their hearts (and minds) may thus learn wisdom and their ears may thus learn to hear? Truly it is not their eyes that are blind, but their hearts which are in their breasts.<br/>
Have they, namely, the disbelievers of Mecca, not travelled in the land so that they may have hearts with which to comprehend, what befell deniers before them, or ears with which to hear?, the stories of how they were destroyed and their dwelling-places were ruined, and so take heed? Indeed it is not the eyes that turn blind, but it is the hearts that turn blind within the breasts (allatee fee'l-sudoor, for emphasis).