خُذُوا مِنْ كُلِّ عِلْمٍ أَحْسَنَهُ فَإِنَّ النَّحْلَ يَأْكُلُ مِنْ كُلِّ زَهْرٍ أَزْيَنَهُ فَيَتَوَلَّدُ مِنْهُ جَوْهَرَانِ نَفِيسَانِ أَحَدُهُمَا فِيهِ شِفَاءٌ لِلنَّاسِ وَ الْآخَرُ يُسْتَضَاءُ بِهِ.
Imam Ali (as):
Acquire from each type of knowledge the best of it, just like a honeybee which searches for the best flowers to eat their sweet nectar and thus is able to produce two precious substances one of which contains healing for the people and the other [honey wax] is used for producing light.
Source:
Ghurar al-Ḥikam
Vol1
P3443
ID: 14667