No one must leave here and so carry to the world, together with the sign impressed on his skin, the evil tidings of what man's presumption made of ma… - Primo Levi

Sooner or later in life everyone discovers that perfect happiness is unrealizable, but there are few who pause to consider the antithesis: that perfect unhappiness is equally unattainable. The obstacles preventing the realization of both these extreme states are of the same nature: they derive from our human condition which is opposed to everything infinite. Our ever-insufficient knowledge of the future opposes it: and this is called, in the one instance, hope, and in the other, uncertainty of the following day. The certainty of death opposes it: for it places a limit on every joy, but also on every grief. The inevitable material cares oppose it: for as they poison every lasting happiness, they equally assiduously distract us from our misfortunes and make our consciousness of them intermittent and hence supportable.

Similar to the way we are led along in life by the endless pursuits of pleasures, we are led along, even saved by the endless revelation of pain. This in itself may not be a happy thought, but it is a reminder of how relative, always, are our perceptions of misery and joy.

We who survived the Camps are not true witnesses. This is an uncomfortable notion which I have gradually come to accept by reading what other survivors have written, including myself, when I re-read my writings after a lapse of years. We, the survivors, are not only a tiny but also an anomalous minority. We are those who, through prevarication, skill or luck, never touched bottom. Those who have, and who have seen the face of the Gorgon, did not return, or returned wordless.

Liquids require receptacles. This is the great problem of packaging, which every experienced chemist knows: and it was well known to God Almighty, who solved it brilliantly, as he is wont to, with cellular membranes- eggshells, the multiple peel of oranges, and our own skin, because after all we too are liquids. Now, at that time, there did not exist polyethylene, which would have suited me perfectly since it is flexible, light, and splendidly impermeable: but it is also a bit too incorruptible, and not by chance God Almighty himself, although he is a master of polymerization, abstained from patenting it: He does not like incorruptible things.