82 Wisdom of Naj al-Balaja; Five saving orders of Amir al-Mu'minin Imam Ali (peace be upon him) said: I recommend five things to you; None of you should hope except in your Lord; And fear nothing but his sin; And that none of you will be ashamed to say "I don't know" when asked about what he doesn't know. And no one should be ashamed when he does not know something when he learns it; And patience upon you, because the patience of faith is like the head of the body, and there is no good in the body without the head, nor in faith without patience.