What does justice look like?

When I was preparing this morning for a look at the parable of the "Workers in the Vineyard" in Matthew 20, I ran across this thought

Justice [is not] a passive idea waiting to be violated, and it certainly is not to be defined by self-centered interests. Justice requires positive action seeking the good for all persons, especially the poor. True justice - at least God's justice - seeks mercy and ways to express love.

Stories of Intent by Klyne Snodgrass, p. 378