The secret of karma yoga which is to perform actions without any fruitive desires is taught by Lord Krishna in the Bhagavad-Gita.
Swami VivekanandaIf you really want to judge the character of a man, look not at his great performances. Watch a man do his most common actions.
Swami VivekanandaThrow overboard all idea of jealousy and egotism, once for all. Come on to the practical field with tremendous energy; to work, in the fullness of strength! As to the rest, the Lord will point out the way.
Swami VivekanandaI am neither man nor angel. I have no sex nor limit. I am knowledge itself. I am He. I have neither anger nor hatred. I have neither pain nor pleasure. Death or birth I never had. For I am Knowledge Absolute, and Bliss Absolute. I am He, my soul, I am He!
Swami Vivekananda