Whoever warns you against sins and vices is like the one who gives you good tidings. - Alī ibn Abī Ṭālib

Remember that this world which you covet so ardently and attempt to acquire so earnestly, and which sometimes annoys you and sometimes pleases you so much, is neither your home nor a permanent destination. You have not been created for it, nor invited to it as your resting-place. It shall neither remain with you for ever, nor will you remain in it eternally. If it has enticed you away with its charrns, it has also warned and cautioned you of real dangers lurking in its folds. Take account of the warnings it has given you and do not be seduced or deceived by its allurements. Let these warnings frighten you from being too greedy to possess it. Try to advance towards the place where you are invited for eternal bliss and turn your face away from the vicious world.

Associating with the wise and the knowledgeable people adds to the prestige of a person.

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".