Listen widely to remove your doubts and be careful when speaking about the rest and your mistakes will be few. See much and get rid of what is dangerous and be careful in acting on the rest and your causes for regret will be few. Speaking without fault, acting without causing regret: 'upgrading' consists in this.
From the loving example of one family a whole State may become loving, and from its courtesies, courteous; while from the ambition and perverseness of the one man the whole State may be thrown into rebellious disorder. Such is the nature of influence.