My answer :
The most important thing i learned in my life is , taking care of yourself for you to take care of other people .
I ask this same question to my other friends and this is what they answered :
(Some are tagalog(Filipino) for i ask them in my own language)
1. Acceptance in all things .
2. To be contended with what i have right now.
3. Never to waste time .
4. Learn to take care of what you have .
5. Finding good friends.
6. be still, let God be God .
7. Appreciate all things .
8. You cant please everyone .
9. Nothing last forever , so enjoy everything .
10 . Always put your feet on the ground .
.Ems.