5 things that worth your greatest anxiety to learn in life (Hazrat Ali)
1. Have hope only for Allah
2. Be afraid of nothing but sins
3. If you do not know something, never be ashamed to admit it
4. If you do not know something, never hesitate or feel ashamed to learn it
5. Acquire patience and endurance, because their relation with faith is that of head to body, body is no use without head