the psychology of other living beings around them, not even excepting spiritually complicated man.
Rats, for instance, these big grey rodents, so bold, greedy and cautious, are quickly tamed and can be moulded into friends. However, to reveal the condemning truth, they are entirely actuated by selfish motives; for they give thought to their own welfare only and for this will make diplomatic agreements with man. In my cell there was a nest of these rodents, and, as I do not like such fellow-lodgers, I was planning to stop up the hole, when I observed that the colony consisted of only a mother and five little ones. It became evident that the mother was a widow, since I never saw a second grown one which could be regarded as the husband, and the old rat had, according to my way of thinking, such a sad and depressed look as well became a widow.
Never more than six grey figures glided through the darkness of my cell. One evening when all of them came out of the hole together, I tried an experiment by stamping sharply and watched them scuttle back under the floor. After a moment the old one poked her nose out and emerged cautiously. Gradually she moved farther from the hole and then gave a low call, which brought two little heads above the horizon. When I stamped again, they disappeared, the widow hiding this time behind my box. Once more, when she satisfied herself that quiet reigned, she gave another signal that brought the little ones out, only to be driven back by my repetition of the threatening noise. After this warning, the old one did not appear, but I had the feeling that she was somewhere watching me and trying to make out my wishes. Once there seemed no other development immediately ahead, I threw a bit of sugar on the floor. In an instant the mother appeared from somewhere, snatched it up
