“If mind is common to us, then also the reason, whereby we are reasoning beings, is common.”

The First Part of the Institutes of the Laws of England, or, A Commentary on Littleton (London, 1628, ed. F. Hargrave and C. Butler, 19th ed., London, 1832), Third Institute. Compare: "Let us consider the reason of the case. For nothing is law that is not reason", Sir John Powell, Coggs vs. Bernard, 2 Ld. Raym. Rep. p. 911.
Institutes of the Laws of England

2002

VII, 53
Meditations (c. 121–180 AD), Book VII
Context: Where any work can be done conformably to the reason which is common to gods and men, there we have nothing to fear; for where we are able to get profit by means of the activity which is successful and proceeds according to our constitution, there no harm is to be suspected.

Rien n'est plus contraire à la religion et au clergé qu'une tête sensée et raisonnable. — Paul-Henri Thiry, Baron d'Holbach, Théologie portative, ou Dictionnaire abrégé de la religion chrétienne (1768): Folie
Misattributed

Book 2, Chapter 2
Discourses on Livy (1517)
Context: It is truly a marvelous thing to consider to what greatness Athens arrived in the space of one hundred years after she freed herself from the tyranny of Pisistratus; but, above all, it is even more marvelous to consider the greatness Rome reached when she freed herself from her kings. The reason is easy to understand, for it is the common good and not private gain that makes cities great. Yet, without a doubt, this common good is observed only in republics, for in them everything that promotes it is practised, and however much damage it does to this or that private individual, those who benefit from the said common good are so numerous that they are able to advance in spite of the inclination of the few citizens who are oppressed by it.

Summa Theologica (1265–1274), Unplaced by chapter

Fragment 92, as translated by G.W.T. Patrick, trans.
Numbered fragments

A Million Open Doors (1992)