Biocides

These sprays, dusts, and aerosols are now applied almost universally to farms, gardens, forests, and homes—non-selective chemicals that have the power to kill every insect, the "good" and the "bad," to still the song of birds and the leaping of fish in the streams, to coat the leaves with a deadly film, and to linger on in the soil—all this though the intended target may be only a few weeds or insects. Can anyone believe it is possible to lay down such a barrage of poisons on the surface ...

 Chemists Live More Sweetly Than Persian Kings

The chemists are a strange class of mortals, impelled by an almost insane impulse to seek their pleasures amid smoke and vapour, soot and flame, poisons and poverty; yet among all these evils I seem to live so sweetly that may I die if I were to change places with the Persian king.

 Vernor Vinges' Zones

You could study your whole life, and not know. How long must a fish study to understand human motivation? It’s not a good analogy, but it’s the only safe one; we are like dumb animals to the Powers of the Transcend. Think of all the different things people do to animals—ingenious, sadistic, charitable, genocidal—each has a million elaborations in the Transcend. The Zones are a natural protection; without them, human-equivalent intelligence would probably not exist.” She waved at the...