Irju means uprightness. Now this is a most critical, vital, necessary quality. Uprightness means that one must always uphold or identifies the truth in any given situation, in any matter, he must at all cost safeguard it. Never part from it, never compromise it. He stands firmly on that truth. This is not stubbornness. This is respecting the truth and above all, the knowledge that ultimately the truth will prevail. However, to uphold the truth one will also have to speak the truth. So there lies its connection to Virtue.