Sunday, April 21, 1963 ...he said that there were lots of things that could drive a man mad, especially if he did not have the resolution, the purpose, required for learning; but when a man had a clar, unbending intent, feelings were in no way a hinderance, for he was cabable of controlling them. Don Juan, in *The Teachings of Don Juan: A Yaqui Way of Knowledge* by Carlos Castaneda.