Benjamin Franklin : To George Whitefield. Philadelphia, July 6, 1749.
… I am glad to hear that you have frequent opportunities of preaching among the great. If you can gain them to a good and exemplary life, wonderful changes will follow in the manners of the lower ranks; for, ad Exemplum Regis, &c. On this principle Confucius, the famous eastern reformer, proceeded. When he saw his country sunk in vice, and wickedness of all kinds triumphant, he applied himself first to the grandees; and having by his doctrine won them to the cause of virtue, the commons followed in multitudes. The mode has a wonderful influence on mankind; and there are numbers that perhaps fear less the being in Hell, than out of the fashion! Our more western reformations began with the ignorant mob; and when numbers of them were gained, interest and party-views drew in the wise and great. Where both methods can be used, reformations are like to be more speedy. O that some method could be found to make them lasting! He that shall discover that, will, in my opinion, deserve more, ten thousand times, than the inventor of the longtitude…
In : The writings of Benjamin Franklin : Vol. 2 : Philadelphia 1726-1757.
http://www.historycarper.com/resources/twobf2/letter10.htm.