Pride mars greatness. - Alī ibn Abī Ṭālib

O son of Adam, if you have collected anything in excess of your actual need, you will act only as its trustee for someone else to use it.

Nawf bin Fizala Bakali, the famous scholar of the early Islamic days says that one night he was with Imam Ali. In the middle of the night, Imam Ali got up from his bed, looked for sometime at the stars and inquired of Nawf whether he was awake. Nawf said: "I got from my bed replying, "Yes, Amirul Mo'minin (Commander of the Faithful) ! I am awake".

Do not get angry and lose your temper quickly over the mistakes and failures of those over whom you rule. On the contrary, be patient and sympathetic with them.