Wisdom from Prophets

One who does not practice modesity and does not refrain from shameless deeds is not a Muslim -Prophet Muhammad (PBUH)
 

Wisdom from Quran

It is He Who gives life and death, and to Him is due the alternation of Night and Day: will ye not then understand? (23:80)

Wisdom from Imams

Hearts of people are like wild beasts. They attach themselves to those who love and train them. - Imam Ali (a.s.)