Gurcharan Das said this quote

Despite the many occasions when its characters feel frustrated before the weight of circumstances, and despite blaming their feeling of impotence on daiva, 'fate', moral autonomy shines through in the epic. Because they have some freedom to choose they can be praised when they follow dharma or blamed when they follow adharma. At the moment of making a decision they become conscious of their freedom, and it is this perception of autonomy that gives them the ability to lead authentic moral lives.

~ Gurcharan Das

By deceiving Drona, Yudhishthira corrupts his teacher's relationship with the world. So do we every time we lie - we corrupt the 'other' in the same way.

~ Gurcharan Das