The Capitol Pylon programme identifies Wisdom, Justice, Power and Mercy as the constant guardians of the law. It places Wisdom and Justice to the east, and Power and Mercy to the west.

Alexander’s History of Law · “The Majesty of the Law”
Wisdom, Justice, Power and Mercy: Constant Guardians of the Law
An archival programme sheet for the Capitol Pylon identifies the four constant guardians of the law.
Nebraska State Capitol
A Harmony of the Arts

A Harmony of the Arts, Whitaker, AIA, 1926. The upper panel depicts the Trial of Orestes, and the lower panel depicts the Magna Carta.

A detail of Athena in the Trial of Orestes, with the Athenian owl.

The Golden Calf appears nearby. Mosaic Law and kingly law form early foundations of law in Western civilization. A Harmony of the Arts, Whitaker, AIA, 1926.