Bhishma said Kings, O monarch, have four sorts of friends. They are-one who has the same object, one who is devoted, one who is related by birth, and one who has been won over (by gifts and kindness).
भीष्म उवाच चतुर्विधानि मित्राणि राज्ञां राजन् भवन्त्युत। सहार्थो भजमानश्च सहजः कृत्रिमस्तथा॥