Shaykh Abdallah Bin Bayyah's advices before he left the retreat.

Taqwa - doing what Allah wants, avoid what Allah prohibited
Taubah - we should all make taubah. This is the foundation and better than all of what muslims fighting over right now.
Learn - study your religion. rules regarding fiqh, etc
Spend - spend your wealth that Allah has given. Do good with the wealth.

It is just a short period of time that you have in this world. Spend it well.