In the Gita you will find: "All actions are wrought by the qualities of nature only. The self-deluded man, through egoism, thinketh: "I am the doer." But he who knoweth the essence of the divisions of the qualities and functions, holding that the qualities move amidst the qualities, is not attached."
From "Daily Sayings" by Swami Sivananda (1987-1963). More Informations on Sw