"Because you are firmly believing scientific truth, and you are caught by scientific way of life, you have no idea of what is true mind. You are always watching the shadow of the mind, chasing after the shadow of the mind. Philosophical interpretation or psychological interpretation of your mind is just a shadow of the mind, and you are firmly believe in it." Shunryu Suzuki

If you want to hear to whole teaching, please find it here. If you want to read the transcript, you'll find it here.