"The philosophers who put the question of freedom in this fashion can never acquire a clear thought about it. For the human being in his present state is neither free nor unfree; but he is on the way to freedom. He is partially free, partially unfree. He is free to the degree he has acquired knowledge and consciousness of world relations. — The fact that our destiny, our karma, meets us in the form of absolute necessity is no obstacle to our freedom. For when we act we approach this destiny with the measure of independence we have achieved. It is not destiny that acts, but it is we who act in accordance with the laws of this destiny."
"Activity that has become destiny is karma."
Both Rudolf Steiner, full essay at following link.
http://wn.rsarchive.org/Articles/ReinKarma/ReKarm_e02.html