From "Power Rangers DinoThunder: Fighting Spirit (#1.27)"
[facing three of his past Ranger powers in a dream
Mighty Morphin' Green Ranger
You passed the test.
Dr. Tommy Oliver
Test? What are you talking about?
Red Zeo Ranger
You haven't been fighting us... you've been fighting for your life.
Mighty Morphin' White Ranger
And you've proven the will to live is stronger than any Ranger power.