[Mr. Hu said:] There always comes a time when a man almost reaches the end of his endurance and is tempted to write down something, however untrue, to satisfy his inquisitors and to free himself from intolerable pressure. But one mustn't do it. [. . .] Once one starts confessing, they will demand more and more admissions of guilt, however false, and exert increasing pressure to get what they want. In the end, one will get into a tangle of untruths from which one can no longer extract oneself.