doctors’ lab coats, and tickles the exclamation marks of science until they bow their heads and become rounded into question marks. “So how can we ever know anything at all?!” he once blurted out in the lecture hall. Fifteen years had passed since then, and he still remembered the anger that had risen in him on that sleepy afternoon when he realized that the profession he was training for was no more certain than any other. A student who had fallen asleep beside
