Know, if thou has a friend whom thou fully trustest, and from whom thou woulds’t good derive, thou shouldst blend thy mind with his, and gifts exchange, and often go to see him.
Veiztu ef þú vin átt þanns þú vel trúir ok vill þú af honum gótt geta geði skalt við þann blanda ok gjöfum skipta fara at finna opt
Havamal: 44, Gestaþáttr