indriyārtheṣhu vairāgyam anahankāra eva cha
janma-mṛityu-jarā-vyādhi-duḥkha-doṣhānudarśhanam
Dispassion towards the objects of the senses, and also absence of egoism, insight into the pain and evil of birth, death, old age and sickness,
In plain words: Krishna continues: wisdom also means not being pulled by sense pleasures and not being self-centered. It means seeing clearly the suffering that comes with birth, death, old age and sickness.