Sanskrit

असंयतात्मना योगो दुष्प्राप इति मे मतिः। वश्यात्मना तु यतता शक्योऽवाप्तुमुपायतः।।6.36।।

Summary

It is not possible to attain Self-Realization unless one knows how to control oneself; however, for one who, striving by the proper means, learns such control, it is possible.