My father owned a novelty store—a most peculiar man. From early childhood I learned to distrust a priori judgments: Nothing could be predicted. Behind the closed lid, the outstretched hand, what streamers, shocks, accordions of foam! Our belief in the uniformity of nature is naive, said Russell, who compared mankind to chickens: because the farmer feeds them every day they “know” it is empirically impossible for him to open the cage and wring their necks.
   At thirteen I had adjusted to my surroundings by adopting a stoical pessimism bordering on catatonia. “Have I told you about the chicken who was not an empiricist?” my father asked one evening. He was smoking his after-dinner cigar and looked unusually