Quote from : Auto-da-Fé Book

His meals were always punctual. Whether she cooked well or badly he did not know; it was a matter of total indifference to him. During his meals, which he ate at his writing desk, he was busy with important considerations. As a rule he would not have been able to say what precisely he had in his mouth. He reserved consciousness for real thoughts; they depend upon it; without consciousness, thoughts are unthinkable. Chewing and digestion happen of themselves.