Verse 35

आत्मैव ह्यात्मनो बन्धुरात्मनात्मैवमुद्धरेत् ।नात्मानमवलेपेन जन्मपङ्कार्णवे क्षिपेत्

In plain words

The self alone, indeed, is the friend of the self; by the self one should thus lift up the self. One should not, through self-conceit, cast the self into the ocean of the mire of birth.