For Those Who Possess And Can Wield

[the Virtues] Cannot Exist Without Prudence. A Proof Of This Is That Everyone, Even At The Present Day, In Defining Virtue, After Saying What Disposition It Is [i.e. Moral Virtue] And Specifying The Things With Which It Is Concerned, Adds That It Is A Disposition Determined By The Right Principle; And The Right Principle Is The Principle Determined By Prudence.

Nor Was Civil Society Founded Merely To Preserve The Lives Of Its Members; But That They Might Live Well: For Otherwise A State Might Be Composed Of Slaves, Or The Animal Creation... Nor Is It An Alliance Mutually To Defend Each Other From Injuries, Or For A Commercial Intercourse. But Whosoever Endeavors To Establish Wholesome Laws In A State, Attends To The Virtues And Vices Of Each Individual Who Composes It; From Whence It Is Evident, That The First Care Of Him Who Would Found A City, Truly Deserving That Name, And Not Nominally So, Must Be To Have His Citizens Virtuous.

Money Was Established For Exchange, But Interest Causes It To Be Reproduced By Itself. Therefore This Way Of Earning Money Is Greatly In Conflict With The Natural Law.

Anything Whose Presence Or Absence Makes No Discernible Difference Is No Essential Part Of The Whole.

Virtue Is The Golden Mean Between Two Vices, The One Of Excess And The Other Of Deficiency.