And we must remember that [Hitler and Mussolini's] faithful followers, among them the diligent executors of inhuman orders, were not born torturers, … - Primo Levi

Monsters exist, but they are too few in number to be truly dangerous. More dangerous are the common men, the functionaries ready to believe and to act without asking questions.

I too entered the Lager as a nonbeliever, and as a nonbeliever I was liberated and have lived to this day.

...better not to do than to do, better to meditate than to act, better his astrophysics, the threshold of the Unknowable, than my chemistry, a mess compounded of stenches, explosions and small futile mysteries. I thought of another moral, more down to earth and concrete, and I believe that every militant chemist can confirm it: that one must distrust the almost-the-same (sodium is almost the same as potassium, but with sodium nothing would have happened_, the practically identical, the approximate, the or-even, all surrogates, and all patchwork. the difference can be small, but they can lead to radically different consequences, like a railroad's switch points; the chemist's trade consists in good part in being aware of these differences, knowing them close up, and foreseeing their effects. And not only the chemist's trade.

Except for cases of pathological incapacity, one can and must communicate, and thereby contribute in a useful and easy way to the peace of others and oneself, because silence, the absence of signals, is itself a signal, but an ambiguous one, and ambiguity generates anxiety and suspicion. To say that it is impossible to communicate is false; one always can.