A too great disproportion among the citizens weakens any state. Every person, if possible, ought to enjoy the fruits of his labour, in a full possession of all the necessities, and many of the conveniences of life. No one can doubt, but such an equality is most suitable to human nature, and diminishes much less from the happiness of the rich than it adds to that of the poor.

Political Discourses by David Hume Esq (ed. 1752)