For those impervious to history, only sterilization and quarantine are efficacious. - Sheri S. Tepper

And here, there, nosing among the grass roots, will come the hounds, muzzles wrinkling, ears dangling, one foot before another in a slow pace to find it, the inevitable it, the nighttime horror, the eater of young.

For it would be only for a time. Until what he knew and thought became no longer relevant or necessary and was forgotten. But that was the same with all of us. We were only what we were for a time, at that time. Then our own silver began to mix with the tin of our future to change us. I knew this to be so and grieved for Windlow while I grieved for me. In time I would not be this Peter, even as I now was not the peter of two years ago.... Yet that Peter was not lost.

Along the way, all meaning was lost except for verbal signals, the kind of signals any animal species develops in order to stay in touch with its own kind, call others to a feeding spot, or alert others to danger. Every linguist should know that language must be used to be retained, and the compilers of this report have warned that human language on Earth is also being reduced. As humans become more crowded, they become less tolerant of variety. To fit into a crowd, people must be similar, and Earth’s population today is a vat of homogeneity with only a pretense of choice remaining. One may pick model x with one curlicue or model y with three, the tasteless brown cracker or the tasteless yellow cracker, the actual difference in either case being nil. Any real choice among things of unlike value might lead to disparity, which leads to conflict. Ideas also contribute to disparity, and therefore in crowded populations ideas must be restricted to the least controversial, the least interesting. Children all receive the same grades in school. Workers all receive the same pay. Clothing is similar; Foods are identical; and with the passage of all distinctions the words for them also pass.