hadith
8059
۞
Imam Ali (AS) said, May Allah have mercy on the person who reflects and then takes lesson, and who takes lesson and hence perceives [the reality of things].
الإمامُ عليٌّ (عَلَيهِ الّسَلامُ) : رَحِمَ اللّهُ امْرَءاً تَفَكَّرَ فَاعْتَبَرَ وَ اعْتَبَرَ فَأبْصَرَ