How does Anthony Lewis use imagery in Gideon's Trumpet?

Imagery:

"The comments from the bench - sometimes funny, sometimes quite blunt - bring out the personalities of the justices and remind us that the Court is a collection of strong-minded individuals, much less institutionalized than the typical agency of the Executive Branch."

"In the future the name 'Gideon' will stand for the great principle that the poor are entitled to the same type of justice as are those who are able to afford counsel. It is probably a good thing that it is immaterial and unimportant that Gideon is something of a 'nut,' that his maniacal distrust and suspicion lead him to the very borders of insanity."