The Difference Between Arjuna and Duryodhana.
Dhirasanta Das Goswami: Once when the Kurukshetra war was declared, Duryodhana sent messengers to every part of the globe to seek the assistance of various kings. But Krishna was so powerful that He warranted a personal request. Also Duryodhana knew that Krishna was the main support of the Pandavas, and if Duryodhana could get His assistance, then the Pandavas would stand no chance in winning the war. Arjuna also thought of Krishna, so both of them decided to go to Dwaraka.