उद्धरेदात्मनाऽऽत्मानं नात्मानमवसादयेत्। आत्मैव ह्यात्मनो बन्धुरात्मैव रिपुरात्मनः।।6.5।। uddhared ātmanātmānaṁ nātmānam avasādayet ātmaiva hyātmano bandhur ātmaiva ripur ātmanaḥ (A man) should elevate his self by his self; he should not debase his self, for even (a man's) own self is his friend, (a man's) own self is also his enemy.

~ @krishna.speaks