Freedom is union with the deathless; the Self is the essence of all things; its creative power, called action causes the whole world to be.
You are only to perform your duty without an eye on their fruits.
A man must elevate himself by his own mind, not degrade himself. The mind is friend of the conditioned soul, and his enemy as well.
When a man finds delight within himself and feels inner joy and contentment in himself, there is nothing more to be done.