From which person have you learned most in your life? Why?

From which person have you learned most in your life? Why?
I have learned from several people but especially my family but I have no specific person taught me how to face every challenge in life and what attitude should I take in every situation I think one the most important thing is family and friends. I also learned with my friends such as Laura always gives me advice and she is coping very positive. I think more than anything I've learned that every problem is a challenge and life is a path to follow no matter how bad you feel alone get up and go forward never look back. (L)