Algis Budrys,
Infiltration
(1958)
“ Which side had tried to over-power the first chrysalis? Who first enslaved another man? he thought, and half-snarled.That, too, was unimportant now. For the seed had been planted. The thought was there. Those who are awake can place those who sleep under obligation. Control the chrysalids, and you control the sleepers within. But chrysalids endure for one generation, and then the sleepers pass on. ”
