I have a hard time finding good quotations about justice (specially from the Jesuits).
I am biased. Here is a quotation from Fr. Kolvenbach about justice but more about love.
Love at the heart of service.
God is love! Without God's love we struggle in vain for justice and for peace, for life and for truth. Without love, every battle for justice creeps along; without love, peace is only a fragile cease-fire; without love, life loses it's meaning and grandeur; without love, truth loses all it's rights.
Fr Peter-Hans Kolvenbach SJ Superior General of the Society of Jesus