From a letter to Elie Wiesel:
Abraham, father of us all, questioned G‑d’s justice. So did Moses. So did Rabbi Akiva. So did many enlightened souls. You are not the first.
Of all those who questioned, there were two approaches: Those who meant it, and those who did not.
Those who wanted understanding gained understanding—a sense of nothingness encountering a reality far beyond our puny minds.
Those who questioned, but did not want to understand, gained nothing.


It took some gut to write something like this to Elie Wiesel. I would love his response more than the letter sent to him, but overall rabbi, sorry and respectfully, this is pointless abstract philosophy for a G-d nothing-interested in us.
I think people who "gain nothing" and aren't satisfied are the people from which humankind benefits the most.
Man is created to proceed and grow so "gaining nothing" seems counter productive.
Elie Wiesel seems to have liked what the Rebbe said to him more than his own answers after all as seen in the video interview titled "My Spiritual Compass" that can be found over here on Chabad.Org