The things that make a good Judge, or good Interpreter of the Lawes, are, first, A right understanding of that principall Law of Nature called Equity; which depending not on the reading of other mens Writings, but on the goodnesse of a mans own naturall Reason, and Meditation, is presumed to be in those most, that have had most leisure, and had the most inclination to meditate thereon. Secondly, Contempt of unnecessary Riches, and Preferments. Thirdly, To be able in judgement to devest himselfe of all feare, anger, hatred, love, and compassion. Fourthly, and lastly, Patience to heare; diligent attention in hearing; and memory to retain, digest and apply what he hath heard.
(Thomas Hobbes, Leviathan, rev. student ed., ed. Richard Tuck, Cambridge Texts in the History of Political Thought, ed. Raymond Geuss and Quentin Skinner [Cambridge: Cambridge University Press, 1996], chap. 26, pp. 195-6 [italics in original] [first published in 1651])
Note from KBJ: What, no empathy?