Cute 6-Year-Old Girl -- Gives Mom Life Lessons After Divorce (VIDEO)

Can't we all just get along ... was exactly what this little 6-year-old was thinking after her mom got a divorce.

Little Tiana just wants what's best for her mom and dad ... giving her mom some touching life lessons during her passionate speech on the stairs.

She sums it all up perfectly -- "I’m not trying to be mean, I just want everyone to be friends."