4 motivational words of the Quran

The  4 motivational words of the Quran are very useful. 

Small but broadly meaningful.

"La Tahyan" 

will never be disappointed with the past. 

"La Takhaf" 

Never worry about the future. It should be entrusted to Allah. 

"La Tagdab" will have to face unwanted things at various times along the way in life. Don't be angry. 

"La Taskhat" 

will not be displeased with any decision of Allah.