He who wrongs his friend
Wrongs himself more and ever bears about
A silent court of justice in his breast.
—Tennyson.
Think of the importance of friendship in the education of men. It will make a man honest; it will make him a hero; it will make him a saint. It is the state of the just dealing with the just, the magnanimous with the magnanimous, the sincere with the sincere, man with man.
—Thoreau.
Thou mayest be sure that he that will in private tell thee of thy faults is thy friend, for he adventures thy dislike, and doth hazard thy hatred; there are few men that can endure it, every man for the most part delighting in self-praise, which is one of the most universal follies that bewitcheth mankind.
—Raleigh.