अर्जुनस्य प्रतिज्ञे द्वे न दैन्यं न पलायनम्।
आयू रक्षति मर्माणि आयुरन्नं प्रयच्छति॥
Arjuna's two firm vows are: never show cowardice, and never retreat from battle. Dharma protects those who uphold such vows.