We do not know how much we owe to our true and pure friends — how much they add to our joy, what they do toward the formation and the adornment and enrichment of our character. We know not what touches, delicate and beautiful, on the canvas of our soul there will be for ever which the fingers of a friend have left there. There will be a silver thread in every life-web when finished, woven into the fabric by the pure friendship of many days. How important that only the true, the worthy, those with clean hands and good lives, be taken as friends! For an evil companionship will put stained and soiled threads into the web.